A Problem Solving Approach to Mathematics for Elementary School Teachers (12th Edition)
12th Edition
ISBN: 9780321987297
Author: Rick Billstein, Shlomo Libeskind, Johnny Lott
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 3.2A, Problem 1A
A student uses the counting on strategy for adding two numbers. She says “thirteen, fourteen, fifteen, sixteen, seventeen.” What two numbers is she adding?
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
Two functions are given below: f(x) and h(x). State the axis of symmetry for each function and explain how to find it.
f(x)
h(x)
21
5
4+
3
f(x) = −2(x − 4)² +2
+
-5 -4-3-2-1
1
2
3
4
5
-1
-2
-3
5
The functions f(x) = (x + 1)² - 2 and g(x) = (x-2)² + 1 have been rewritten using the completing-the-square method. Apply your knowledge of functions in vertex form to determine if the vertex for each function is a minimum or a
maximum and explain your reasoning.
Total marks 15
3.
(i)
Let FRN Rm be a mapping and x = RN is a given
point. Which of the following statements are true? Construct counterex-
amples for any that are false.
(a)
If F is continuous at x then F is differentiable at x.
(b)
If F is differentiable at x then F is continuous at x.
If F is differentiable at x then F has all 1st order partial
(c)
derivatives at x.
(d) If all 1st order partial derivatives of F exist and are con-
tinuous on RN then F is differentiable at x.
[5 Marks]
(ii) Let mappings
F= (F1, F2) R³ → R² and
G=(G1, G2) R² → R²
:
be defined by
F₁ (x1, x2, x3) = x1 + x²,
G1(1, 2) = 31,
F2(x1, x2, x3) = x² + x3,
G2(1, 2)=sin(1+ y2).
By using the chain rule, calculate the Jacobian matrix of the mapping
GoF R3 R²,
i.e., JGoF(x1, x2, x3). What is JGOF(0, 0, 0)?
(iii)
[7 Marks]
Give reasons why the mapping Go F is differentiable at
(0, 0, 0) R³ and determine the derivative matrix D(GF)(0, 0, 0).
[3 Marks]
Chapter 3 Solutions
A Problem Solving Approach to Mathematics for Elementary School Teachers (12th Edition)
Ch. 3.1 - Mathematical Connections Explain why a number and...Ch. 3.1 - If a numeration system has place value, what does...Ch. 3.1 - Explain the difference between zero and nothingCh. 3.1 - What are the major drawbacks to each of the...Ch. 3.1 - a. Why are large numbers in the United States...Ch. 3.1 - In the Roman numeral system, explain a when you...Ch. 3.1 - Mathematical Connections Research an abacus and...Ch. 3.1 - Prob. 8MCCh. 3.1 - a. Create a numeration system with unique symbols,...Ch. 3.1 - Prob. 10MC
Ch. 3.1 - Prob. 11MCCh. 3.1 - Betty asks how the two 3s in the numeral 32,356...Ch. 3.1 - A student claims that the Roman system is a...Ch. 3.1 - When using Roman numerals, a student asks whether...Ch. 3.1 - The figure below represents 237. Which number is...Ch. 3.1 - Prob. 2NAEPCh. 3.1A - Write the following numerals in words....Ch. 3.1A - Indicate which digit in 234,518 has place value....Ch. 3.1A - For each of the following base-ten numerals, give...Ch. 3.1A - Rewrite each of the following as base-ten numeral....Ch. 3.1A - If , and each represents different non-zero...Ch. 3.1A - Prob. 6ACh. 3.1A - A certain three-digit natural number has the...Ch. 3.1A - For each of the following pairs of numerals, tell...Ch. 3.1A - A cornerstone representing when a building was...Ch. 3.1A - Write each of the following numerals in Roman...Ch. 3.1A - Complete the following table, which compares...Ch. 3.1A - In the counting frame, the value of each dot is...Ch. 3.1A - Write the base four numeral for the following...Ch. 3.1A - Write the first 15 counting numerals for each of...Ch. 3.1A - How many different digits are needed for the...Ch. 3.1A - Write 2032four in expanded notation and then...Ch. 3.1A - Determine the greatest three-digit number in each...Ch. 3.1A - Find the numeral preceding and succeeding each of...Ch. 3.1A - What, if anything, is wrong with the following...Ch. 3.1A - What is the least number of base-four blocks...Ch. 3.1A - Draw base-five blocks to represent 231five.Ch. 3.1A - Prob. 23ACh. 3.1A - Without converting to base-ten, tell which is the...Ch. 3.1A - Recall that with base-ten blocks: 1long=10units,...Ch. 3.1A - Convert each of the following base-ten numerals to...Ch. 3.1A - Write each of the following numerals in base ten....Ch. 3.1A - Represent abcdsix, a base-six numeral, in expanded...Ch. 3.1A - In what base does 12b+26b=41b?Ch. 3.1A - Prob. 30ACh. 3.1A - Prob. 31ACh. 3.1A - You are asked to distribute 900 in prize money....Ch. 3.1A - Prob. 33ACh. 3.1A - For each of the following, find b if possible. If...Ch. 3.1A - Write the following numerals in the indicated base...Ch. 3.1A - Prob. 36ACh. 3.1B - Write the following in words. a. 253,243,810 b....Ch. 3.1B - Indicate which digit in 2,345,925 has place value....Ch. 3.1B - For each of the following base-ten numerals, give...Ch. 3.1B - Rewrite each of the following as a base-ten...Ch. 3.1B - Prob. 5ACh. 3.1B - How many digits are there in the standard form of...Ch. 3.1B - A two-digit number has the property that the units...Ch. 3.1B - Prob. 8ACh. 3.1B - Prob. 9ACh. 3.1B - On the United States one-dollar bill, the number...Ch. 3.1B - Write each of the following numerals in Roman...Ch. 3.1B - Prob. 12ACh. 3.1B - Prob. 13ACh. 3.1B - Assessment Write the base-three numeral for the...Ch. 3.1B - Write the first 10 counting numerals for each of...Ch. 3.1B - How many different digits are used in base...Ch. 3.1B - Write 2022three in expanded form and then convert...Ch. 3.1B - Prob. 18ACh. 3.1B - Find the numeral preceding and succeeding each of...Ch. 3.1B - What, if anything, is wrong with the following? a....Ch. 3.1B - What is the fewest number of base-three blocks...Ch. 3.1B - Draw base-two blocks to represent 1001two.Ch. 3.1B - Prob. 23ACh. 3.1B - Prob. 24ACh. 3.1B - Assessment What is the fewest number of multibase...Ch. 3.1B - Convert each of the following base-ten numerals to...Ch. 3.1B - Write each of the following numerals in base ten....Ch. 3.1B - Represent abcdeight as a base-ten numeral in...Ch. 3.1B - In what base does 54b+45b=132b?Ch. 3.1B - Prob. 30ACh. 3.1B - Prob. 31ACh. 3.1B - Who Wants the Money, a game show, distributes...Ch. 3.1B - A coffee shop sold 1 cup, 1 pint and 1 quart of...Ch. 3.1B - For each of the following numerals, find digit b,...Ch. 3.1B - Using only the number keys on a calculator, fill...Ch. 3.1B - The English word MIX has value 1000 9 = 1009 in...Ch. 3.2 - In a survey of 52 students, 22 said they were...Ch. 3.2 - To find 9+7, a student says she thinks of 9+7 as...Ch. 3.2 - Explain in two different ways why if ab and c is a...Ch. 3.2 - When subtraction and addition appear in an...Ch. 3.2 - Explain whether it is important for elementary...Ch. 3.2 - Prob. 6MCCh. 3.2 - Explain how the model shown can be used to...Ch. 3.2 - Prob. 8MCCh. 3.2 - Prob. 9MCCh. 3.2 - Prob. 10MCCh. 3.2 - Describe any model not in this text that you could...Ch. 3.2 - Prob. 12MCCh. 3.2 - a. Create a word problem in which the set model...Ch. 3.2 - Prob. 14MCCh. 3.2 - Prob. 15MCCh. 3.2 - Prob. 16MCCh. 3.2 - Prob. 17MCCh. 3.2 - A student says asks why we use subtraction to...Ch. 3.2 - Prob. 19MCCh. 3.2 - Prob. 20MCCh. 3.2 - Prob. 21MCCh. 3.2 - A first grader claims that 24=2 because you just...Ch. 3.2 - Prob. 23MCCh. 3.2 - Prob. 24MCCh. 3.2 - Prob. 25MCCh. 3.2 - Prob. 26MCCh. 3.2 - Prob. 27MCCh. 3.2 - Prob. 28MCCh. 3.2 - 8=21 What number should be put in the box to make...Ch. 3.2 - Prob. 2NAEPCh. 3.2A - A student uses the counting on strategy for adding...Ch. 3.2A - Prob. 2ACh. 3.2A - If n(A)=3, n(B)=5 and n(AB)=6, what do you know...Ch. 3.2A - Give an example to show why, in the definition of...Ch. 3.2A - If n(A)=3, n(AB)=6, answer the following...Ch. 3.2A - Which of the following sets are closed under...Ch. 3.2A - Prob. 7ACh. 3.2A - Prob. 8ACh. 3.2A - Each of the following equations illustrates an...Ch. 3.2A - Each of the following illustrates a property of...Ch. 3.2A - Prob. 11ACh. 3.2A - Prob. 12ACh. 3.2A - Find the next three terms in each of the following...Ch. 3.2A - 32. Complete the following magic square using the...Ch. 3.2A - If A, B, and C each stand for a different single...Ch. 3.2A - A special domino set contains all number pairs...Ch. 3.2A - a. At a volleyball game, the players stood in a...Ch. 3.2A - Rewrite each of the following subtraction problems...Ch. 3.2A - Illustrate 85=3 using each of the following...Ch. 3.2A - Prob. 20ACh. 3.2A - a. Solve for x in each of the following equations....Ch. 3.2A - a. One fact in a fact family is 6+5=11.What are...Ch. 3.2A - Prob. 23ACh. 3.2A - Show that each of the following is true. Give a...Ch. 3.2A - Find the solution for x in the set W for each of...Ch. 3.2A - Kelsey has a marbles, Gena has b marbles, and Noah...Ch. 3.2A - Prob. 27ACh. 3.2B - A student uses the counting on strategy for adding...Ch. 3.2B - Prob. 2ACh. 3.2B - Prob. 3ACh. 3.2B - Prob. 4ACh. 3.2B - If n(B)=4, and n(AB)=6, answer the following. a....Ch. 3.2B - Explain whether the following sets are closed...Ch. 3.2B - Prob. 7ACh. 3.2B - Prob. 8ACh. 3.2B - Each of the following equations is an example of...Ch. 3.2B - Each of the following illustrates a properties of...Ch. 3.2B - Prob. 11ACh. 3.2B - Prob. 12ACh. 3.2B - Find the next three terms in each of the following...Ch. 3.2B - Complete the following magic square using the...Ch. 3.2B - If A,B,C, and D each represent a different single...Ch. 3.2B - a. A domino set contains all number pairs from...Ch. 3.2B - If, ab,cb,dc,andced, order the letters from the...Ch. 3.2B - Prob. 18ACh. 3.2B - Illustrate 73=4 using each of the following...Ch. 3.2B - Write a word problem that corresponds to each of...Ch. 3.2B - Use the doubles plus strategy for adding the...Ch. 3.2B - Prob. 22ACh. 3.2B - Prob. 23ACh. 3.2B - Show that each of the following is true. Give a...Ch. 3.2B - Find the solution in the set W for each of the...Ch. 3.2B - Prob. 26ACh. 3.2B - Prob. 27ACh. 3.3 - MATHEMATICAL CONNECTIONS Why is an odd number...Ch. 3.3 - MATHEMATICAL CONNECTIONS Can 0 be the identity for...Ch. 3.3 - MATHEMATICAL CONNECTIONS Suppose you forgot the...Ch. 3.3 - Is xx always equal to 1? Explain your answer.Ch. 3.3 - MATHEMATICAL CONNECTIONS Is xx ever equal to x?...Ch. 3.3 - MATHEMATICAL CONNECTIONS Describe all pairs of...Ch. 3.3 - In the Common Core Standards quote at the...Ch. 3.3 - MATHEMATICAL CONNECTIONS Explain how the...Ch. 3.3 - Prob. 9MCCh. 3.3 - MATHEMATICAL CONNECTIONS Describe a real-life...Ch. 3.3 - Prob. 11MCCh. 3.3 - Enter a natural number less than 20 on a...Ch. 3.3 - Suppose a student argued that 00=1 because every...Ch. 3.3 - Sue claims the following is true by the...Ch. 3.3 - A student claims that for all whole numbers...Ch. 3.3 - Prob. 16MCCh. 3.3 - Amy claims that no finite set of whole numbers is...Ch. 3.3 - Linda performed the following calculations....Ch. 3.3 - Prob. 19MCCh. 3.3 - Prob. 20MCCh. 3.3 - Prob. 21MCCh. 3.3 - Prob. 22MCCh. 3.3 - Prob. 1NAEPCh. 3.3A - Show that 34=12 using each of the following...Ch. 3.3A - If A={a,b} and B={x,y,z}, find each of the...Ch. 3.3A - What multiplication is suggested by the following...Ch. 3.3A - For each of the following, find, if possible, a...Ch. 3.3A - Prob. 5ACh. 3.3A - a. If 5 is removed from the set of whole numbers,...Ch. 3.3A - Rename each of the following using distributive...Ch. 3.3A - Place parentheses, if needed, to make each of the...Ch. 3.3A - Using the distributive property of multiplication...Ch. 3.3A - For each of the following equation, find whole...Ch. 3.3A - A sporting goods store has designs for 6 shirts, 4...Ch. 3.3A - Which property is illustrated in each of the...Ch. 3.3A - Prob. 13ACh. 3.3A - The product 614 can be found by thinking of the...Ch. 3.3A - Use the distributive property of multiplication...Ch. 3.3A - Show that (a+b)2=a2+2ab+b2 using a. the...Ch. 3.3A - If a and b are whole numbers with ab, use the...Ch. 3.3A - Use the property (a+b)2=a2+2ab+b2 to compute the...Ch. 3.3A - Prob. 19ACh. 3.3A - Factor each of the following expressions. a. xyy2...Ch. 3.3A - Rewrite each of the following division problems as...Ch. 3.3A - If /108/a=b then find 108/b.Ch. 3.3A - Write the complete fact family for 72/8=9.Ch. 3.3A - Think of a number. Multiply it by 5.Add 5. Divide...Ch. 3.3A - Show that, in general, each of the following is...Ch. 3.3A - Suppose all of the operations result in whole...Ch. 3.3A - Find the solution for each of the following...Ch. 3.3A - Prob. 28ACh. 3.3A - Is it possible to find a whole number less than...Ch. 3.3A - Students were divided into 10 teams with 12 on...Ch. 3.3A - In each of the following, tell what computation...Ch. 3.3A - Prob. 32ACh. 3.3A - Prob. 33ACh. 3.3A - Prob. 34ACh. 3.3A - Prob. 35ACh. 3.3B - Prob. 1ACh. 3.3B - ASSESSMENT If A={a,b,c,d} and B={x,y,z}, find each...Ch. 3.3B - ASSESSMENT What multiplication is suggested by the...Ch. 3.3B - ASSESSMENT For each of the following, find, if...Ch. 3.3B - ASSESSMENT Determine if the following sets are...Ch. 3.3B - Prob. 6ACh. 3.3B - ASSESSMENT Rename each of the following using the...Ch. 3.3B - Place parentheses, if needed, to make each of the...Ch. 3.3B - Prob. 9ACh. 3.3B - For each of the following equations, find whole...Ch. 3.3B - A new car comes in 5 exterior colors and 3...Ch. 3.3B - ASSESSMENT Which property of whole numbers is...Ch. 3.3B - Prob. 13ACh. 3.3B - The product 524 can be found by thinking of the...Ch. 3.3B - Prob. 15ACh. 3.3B - ASSESSMENT Show that if bc, then a(bc)=abac, using...Ch. 3.3B - ASSESSMENT Use the formula (a+b)(ab)=a2b2 to...Ch. 3.3B - Prob. 19ACh. 3.3B - Factor each of the following: a. xyy b....Ch. 3.3B - Rewrite each of the following division problems as...Ch. 3.3B - If 64a=b, then find 64b.Ch. 3.3B - Think of a number. Multiply it by 2. Add 2. Divide...Ch. 3.3B - Show that, in general, each of the following is...Ch. 3.3B - Suppose all operations result in whole numbers....Ch. 3.3B - Find the solution of each of the following...Ch. 3.3B - Prob. 28ACh. 3.3B - Jonah has a large collection of marbles. He...Ch. 3.3B - Students were divided into eight teams with nine...Ch. 3.3B - In each of the following, tell what computation...Ch. 3.3B - Prob. 32ACh. 3.3B - Prob. 33ACh. 3.3B - Prob. 34ACh. 3.3B - Prob. 35ACh. 3.4 - Discuss the merit of the following expanded...Ch. 3.4 - Prob. 2MCCh. 3.4 - Explain why the scratch addition algorithm works.Ch. 3.4 - Prob. 4MCCh. 3.4 - Prob. 5MCCh. 3.4 - Is the front-end estimate for addition before...Ch. 3.4 - In the new textbooks, there is an emphasis on...Ch. 3.4 - Prob. 8MCCh. 3.4 - Prob. 9MCCh. 3.4 - Give several examples from real-world situations...Ch. 3.4 - a. Give a numerical example of when front-end...Ch. 3.4 - Prob. 12MCCh. 3.4 - Prob. 13MCCh. 3.4 - Prob. 14MCCh. 3.4 - Tira, a fourth grader, performs addition by adding...Ch. 3.4 - Prob. 16MCCh. 3.4 - To find 6819, Joe began by finding 61 and then 98...Ch. 3.4 - Prob. 18MCCh. 3.4 - Prob. 19MCCh. 3.4 - A child is asked to compute 7+2+3+8+11 and writes...Ch. 3.4 - When Richie was asked to round 2568 to the nearest...Ch. 3.4 - When Ashley was asked to round 345 to the nearest...Ch. 3.4 - Pauli subtracted 549 from 5004 as follows. How...Ch. 3.4 - Molly computed 26148 by first subtracting 50 from...Ch. 3.4 - Prob. 25MCCh. 3.4 - Prob. 26MCCh. 3.4 - Prob. 27MCCh. 3.4 - Prob. 28MCCh. 3.4 - Prob. 29MCCh. 3.4 - Prob. 30MCCh. 3.4 - Prob. 31MCCh. 3.4 - Prob. 1NAEPCh. 3.4 - Prob. 2NAEPCh. 3.4 - Prob. 3NAEPCh. 3.4 - Prob. 4NAEPCh. 3.4A - Find the missing digits in each of the following...Ch. 3.4A - Make a drawing similar to the one in Figure 33 to...Ch. 3.4A - Place the digits 7, 6, 8, 3, 5, and 2 in the boxes...Ch. 3.4A - In the following problem, the sum is correct but...Ch. 3.4A - Use the equal-additions approach to compute each...Ch. 3.4A - Janet worked her addition problems by placing the...Ch. 3.4A - Analyze the following computations. Explain what...Ch. 3.4A - Toms diet allows only 1500 calories per day. For...Ch. 3.4A - Prob. 9ACh. 3.4A - In each of the following addition problems,...Ch. 3.4A - Use the lattice algorithm to perform each of the...Ch. 3.4A - Perform each of the following operations using the...Ch. 3.4A - Construct an addition table for base eight and...Ch. 3.4A - Perform each of the following operations: a....Ch. 3.4A - The following is a supermagic square....Ch. 3.4A - Use scratch addition to perform the following...Ch. 3.4A - Determine what is wrong with the following...Ch. 3.4A - Find the number to put in the blank to make each...Ch. 3.4A - Prob. 20ACh. 3.4A - Prob. 21ACh. 3.4A - Prob. 22ACh. 3.4A - Compute each of the following mentally and...Ch. 3.4A - Use breaking up and bridging to compute each of...Ch. 3.4A - Prob. 25ACh. 3.4A - Prob. 26ACh. 3.4A - Prob. 27ACh. 3.4A - Prob. 28ACh. 3.4A - Use front-end estimation with adjustment to...Ch. 3.4A - Use the range strategy to estimate each of the...Ch. 3.4A - Suppose you had a balance of 3287 in your checking...Ch. 3.4A - Prob. 33ACh. 3.4A - Prob. 34ACh. 3.4B - Find the missing digits in each of the following...Ch. 3.4B - Make an appropriate drawing like the one in Figure...Ch. 3.4B - Place the digits 7,6,8,3,5, and 2 in the boxes to...Ch. 3.4B - In the following problem, the sum is correct but...Ch. 3.4B - Prob. 5ACh. 3.4B - Prob. 6ACh. 3.4B - Analyze the following computations. Explain what...Ch. 3.4B - George is cooking a meal for Thanksgiving. He can...Ch. 3.4B - Prob. 9ACh. 3.4B - In each of the following addition problems justify...Ch. 3.4B - Use the lattice algorithm to perform each of the...Ch. 3.4B - Perform each of the following operations using the...Ch. 3.4B - Prob. 13ACh. 3.4B - 14. Perform each of the following operations 2 c =...Ch. 3.4B - Prob. 15ACh. 3.4B - Use scratch addition to perform the following...Ch. 3.4B - Determine what is wrong with the following...Ch. 3.4B - Find the number to put in the blank to make each...Ch. 3.4B - The Hawks played the Elks in a basketball game....Ch. 3.4B - a. Place the numbers 24 through 32 in the...Ch. 3.4B - What is the greatest possible addend that can be...Ch. 3.4B - Compute each of the following mentally. a....Ch. 3.4B - Prob. 23ACh. 3.4B - Prob. 24ACh. 3.4B - Use trading-off to compute each of the following...Ch. 3.4B - Compute each of the following using the adding up...Ch. 3.4B - Prob. 27ACh. 3.4B - Estimate each answer by rounding. a. 937+28 b....Ch. 3.4B - Use front-end estimation with adjustment to...Ch. 3.4B - a. Would the clustering strategy of estimation be...Ch. 3.4B - Use the range strategy to estimate each of the...Ch. 3.4B - Suppose you had a balance of 1237 in your checking...Ch. 3.4B - In each of the following, answer the question...Ch. 3.4B - The attendance at a Country Fair for six days...Ch. 3.5 - MATHEMATICAL CONNECTIONS How would you explain to...Ch. 3.5 - MATHEMATICAL CONNECTIONS What happens when you...Ch. 3.5 - Pick a number Double it. Multiply the result by 3....Ch. 3.5 - Prob. 4MCCh. 3.5 - Prob. 5MCCh. 3.5 - For the given computation, answer the following...Ch. 3.5 - Prob. 7MCCh. 3.5 - If a student presented a new algorithm for...Ch. 3.5 - MATHEMATICAL CONNECTIONS Dina calculated each of...Ch. 3.5 - Prob. 10MCCh. 3.5 - a. Without actually finding the answers determine...Ch. 3.5 - Prob. 12MCCh. 3.5 - Prob. 13MCCh. 3.5 - A student divides as follows. How do you help?Ch. 3.5 - A student asks how you can find the quotient and...Ch. 3.5 - A student claim that to divide a number with the...Ch. 3.5 - a. A student notices that 39+41=40+40 and wonders...Ch. 3.5 - Prob. 18MCCh. 3.5 - What errors do you think the student is making in...Ch. 3.5 - A student performs the following computation....Ch. 3.5 - Prob. 21MCCh. 3.5 - Prob. 22MCCh. 3.5 - Prob. 23MCCh. 3.5 - At the beginning of a trip, the mileage odometer...Ch. 3.5 - Prob. 25MCCh. 3.5 - Prob. 1NAEPCh. 3.5 - Explain why subtraction of terminating decimals...Ch. 3.5 - Prob. 3NAEPCh. 3.5A - Prob. 1ACh. 3.5A - a. Which is greater, 280+280 or 2100? Why? b....Ch. 3.5A - Illustrate how to use base-ten blocks to compute...Ch. 3.5A - Assessment Fill in the missing numbers in each of...Ch. 3.5A - Perform the following multiplications using the...Ch. 3.5A - Prob. 7ACh. 3.5A - a. Use the distributive property of multiplication...Ch. 3.5A - Prob. 9ACh. 3.5A - Assessment Answer the following questions based on...Ch. 3.5A - On a 14 day vacation, Glenn increased his caloric...Ch. 3.5A - Prob. 12ACh. 3.5A - Prob. 13ACh. 3.5A - Place the digits 4,5,7, and 3 in the boxes ____ to...Ch. 3.5A - Using a calculator, Ralph multiplied by 10 when he...Ch. 3.5A - Consider the following multiplications. Notice...Ch. 3.5A - Dan has 4520 pennies in three boxes. He says that...Ch. 3.5A - Prob. 18ACh. 3.5A - Prob. 19ACh. 3.5A - Give reasons for each of the following steps....Ch. 3.5A - Prob. 21ACh. 3.5A - Prob. 22ACh. 3.5A - Use lattice multiplication to compute...Ch. 3.5A - Find the least values of a and b such that...Ch. 3.5A - Place the digits 7, 6, 8, and 3 in the boxes to...Ch. 3.5A - Prob. 26ACh. 3.5A - A car trip took 8 hr of driving at an average of...Ch. 3.5A - A theater has 38 rows with 23 seats in each row....Ch. 3.5A - Without computing, tell which of the following...Ch. 3.5A - Prob. 30ACh. 3.5A - Use your calculator to calculate...Ch. 3.5A - A student uses front-end estimation to estimate...Ch. 3.5B - ASSESSMENT Simplify each of the following...Ch. 3.5B - ASSESSMENT a. Which is greater, l 220+220 or 221?...Ch. 3.5B - ASSESSMENT Illustrate how to use base-ten blocks...Ch. 3.5B - The following model illustrates 1312. a. Explain...Ch. 3.5B - ASSESSMENT Fill in the missing numbers in the...Ch. 3.5B - Assessment Perform the following multiplications...Ch. 3.5B - The following chart gives average water usage for...Ch. 3.5B - ASSESSMENT a. Use a distributive property of...Ch. 3.5B - Prob. 9ACh. 3.5B - Answer the following questions based on the...Ch. 3.5B - Prob. 11ACh. 3.5B - Sue purchased a 30,000 life-insurance policy at...Ch. 3.5B - Place the digits 7, 6, 8, and 3 in the boxes to...Ch. 3.5B - Using a calculator, Jody multiplied by 5 when she...Ch. 3.5B - A student wrote the following addition problem to...Ch. 3.5B - ASSESSMENT Debbie has 340 dimes in three boxes....Ch. 3.5B - Prob. 18ACh. 3.5B - ASSESSMENT Discuss possible error patterns in each...Ch. 3.5B - ASSESSMENT Give reasons for each of the following...Ch. 3.5B - a. Find all the whole numbers that have remainder...Ch. 3.5B - Prob. 22ACh. 3.5B - Assessment Use lattice multiplication to compute...Ch. 3.5B - ASSESSMENT Find the least values of a and b such...Ch. 3.5B - ASSESSMENT A car trip took 6hours at an average of...Ch. 3.5B - ASSESSMENT About 3540 calories must be burned to...Ch. 3.5B - Without computing, tell which of the following...Ch. 3.5B - In each of the following, determine if the...Ch. 3.5B - Use your calculator to multiply several two-digit...Ch. 3.5B - A student users front-end estimation to estimation...Ch. 3.CR - Prob. 1CRCh. 3.CR - Prob. 2CRCh. 3.CR - Prob. 3CRCh. 3.CR - Simplify each of the following products, if...Ch. 3.CR - Write the base-three numeral for the base-three...Ch. 3.CR - What is the fewest number of base-three blocks...Ch. 3.CR - Prob. 7CRCh. 3.CR - Prob. 8CRCh. 3.CR - Prob. 9CRCh. 3.CR - Prob. 10CRCh. 3.CR - Prob. 11CRCh. 3.CR - Write 128 in each of the following bases. a. Five...Ch. 3.CR - Prob. 13CRCh. 3.CR - Prob. 14CRCh. 3.CR - Prob. 15CRCh. 3.CR - Prob. 16CRCh. 3.CR - Prob. 17CRCh. 3.CR - Prob. 18CRCh. 3.CR - Prob. 19CRCh. 3.CR - Prob. 20CRCh. 3.CR - Prob. 21CRCh. 3.CR - Prob. 22CRCh. 3.CR - Prob. 23CRCh. 3.CR - Prob. 24CRCh. 3.CR - Prob. 25CRCh. 3.CR - Prob. 26CRCh. 3.CR - Prob. 27CRCh. 3.CR - Prob. 28CRCh. 3.CR - Prob. 29CRCh. 3.CR - Prob. 30CRCh. 3.CR - Prob. 31CRCh. 3.CR - Prob. 32CRCh. 3.CR - Prob. 33CRCh. 3.CR - Prob. 34CRCh. 3.CR - Prob. 35CRCh. 3.CR - Prob. 36CRCh. 3.CR - Prob. 37CRCh. 3.CR - Prob. 38CRCh. 3.CR - Prob. 39CRCh. 3.CR - Prob. 40CRCh. 3.CR - Prob. 41CRCh. 3.CR - Prob. 42CRCh. 3.CR - Recall that addition problems like 3478+521 can be...Ch. 3.CR - Prob. 44CRCh. 3.CR - Prob. 45CRCh. 3.CR - Prob. 46CRCh. 3.CR - Prob. 47CRCh. 3 - NOW TRY THIS a. Trade base-ten blocks as shown in...Ch. 3 - Prob. 2NTCh. 3 - Prob. 3NTCh. 3 - a. Write CCXLIX as a Hindu-Arabic numeral. b. Use...Ch. 3 - Prob. 5NTCh. 3 - Now Try this 3 If the sets in the preceding...Ch. 3 - Now Try this 4 A common error is that students...Ch. 3 - Prob. 8NTCh. 3 - Prob. 9NTCh. 3 - Prob. 10NTCh. 3 - Prob. 11NTCh. 3 - Which of the following properties hold for...Ch. 3 - Now Try this 12 Find a solution for each of the...Ch. 3 - Prob. 14NTCh. 3 - Prob. 15NTCh. 3 - NOW TRY THIS a. Build an addition table for base...Ch. 3 - Prob. 17NTCh. 3 - Prob. 18NTCh. 3 - Prob. 19NTCh. 3 - Prob. 20NT
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, subject and related others by exploring similar questions and additional content below.Similar questions
- 5. (i) Let f R2 R be defined by f(x1, x2) = x² - 4x1x2 + 2x3. Find all local minima of f on R². (ii) [10 Marks] Give an example of a function f: R2 R which is not bounded above and has exactly one critical point, which is a minimum. Justify briefly Total marks 15 your answer. [5 Marks]arrow_forwardTotal marks 15 4. : Let f R2 R be defined by f(x1, x2) = 2x²- 8x1x2+4x+2. Find all local minima of f on R². [10 Marks] (ii) Give an example of a function f R2 R which is neither bounded below nor bounded above, and has no critical point. Justify briefly your answer. [5 Marks]arrow_forward4. Let F RNR be a mapping. (i) x ЄRN ? (ii) : What does it mean to say that F is differentiable at a point [1 Mark] In Theorem 5.4 in the Lecture Notes we proved that if F is differentiable at a point x E RN then F is continuous at x. Proof. Let (n) CRN be a sequence such that xn → x ЄERN as n → ∞. We want to show that F(xn) F(x), which means F is continuous at x. Denote hnxn - x, so that ||hn|| 0. Thus we find ||F(xn) − F(x)|| = ||F(x + hn) − F(x)|| * ||DF (x)hn + R(hn) || (**) ||DF(x)hn||+||R(hn)||| → 0, because the linear mapping DF(x) is continuous and for all large nЄ N, (***) ||R(hn) || ||R(hn) || ≤ → 0. ||hn|| (a) Explain in details why ||hn|| → 0. [3 Marks] (b) Explain the steps labelled (*), (**), (***). [6 Marks]arrow_forward
- 4. In Theorem 5.4 in the Lecture Notes we proved that if F: RN → Rm is differentiable at x = RN then F is continuous at x. Proof. Let (xn) CRN be a sequence such that x → x Є RN as n → ∞. We want F(x), which means F is continuous at x. to show that F(xn) Denote hn xnx, so that ||hn||| 0. Thus we find ||F (xn) − F(x) || (*) ||F(x + hn) − F(x)|| = ||DF(x)hn + R(hn)|| (**) ||DF(x)hn|| + ||R(hn) || → 0, because the linear mapping DF(x) is continuous and for all large n = N, |||R(hn) || ≤ (***) ||R(hn)|| ||hn|| → 0. Explain the steps labelled (*), (**), (***) [6 Marks] (ii) Give an example of a function F: RR such that F is contin- Total marks 10 uous at x=0 but F is not differentiable at at x = 0. [4 Marks]arrow_forward3. Let f R2 R be a function. (i) Explain in your own words the relationship between the existence of all partial derivatives of f and differentiability of f at a point x = R². (ii) Consider R2 → R defined by : [5 Marks] f(x1, x2) = |2x1x2|1/2 Show that af af -(0,0) = 0 and -(0, 0) = 0, Jx1 მx2 but f is not differentiable at (0,0). [10 Marks]arrow_forward13) Consider the checkerboard arrangement shown below. Assume that the red checker can move diagonally upward, one square at a time, on the white squares. It may not enter a square if occupied by another checker, but may jump over it. How many routes are there for the red checker to the top of the board?arrow_forward
- Fill in the blanks to describe squares. The square of a number is that number Question Blank 1 of 4 . The square of negative 12 is written as Question Blank 2 of 4 , but the opposite of the square of 12 is written as Question Blank 3 of 4 . 2 • 2 = 4. Another number that can be multiplied by itself to equal 4 is Question Blank 4 of 4 .arrow_forward12) The prime factors of 1365 are 3, 5, 7 and 13. Determine the total number of divisors of 1365.arrow_forward11) What is the sum of numbers in row #8 of Pascal's Triangle?arrow_forward
- 14) Seven students and three teachers wish to join a committee. Four of them will be selected by the school administration. What is the probability that three students and one teacher will be selected?arrow_forward(1) Write the following quadratic equation in terms of the vertex coordinates.arrow_forwardNo chatgpt pls will upvote Already got wrong chatgpt answerarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Holt Mcdougal Larson Pre-algebra: Student Edition...AlgebraISBN:9780547587776Author:HOLT MCDOUGALPublisher:HOLT MCDOUGAL
Elementary AlgebraAlgebraISBN:9780998625713Author:Lynn Marecek, MaryAnne Anthony-SmithPublisher:OpenStax - Rice University
Algebra: Structure And Method, Book 1AlgebraISBN:9780395977224Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. ColePublisher:McDougal Littell
Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw Hill
Holt Mcdougal Larson Pre-algebra: Student Edition...
Algebra
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Elementary Algebra
Algebra
ISBN:9780998625713
Author:Lynn Marecek, MaryAnne Anthony-Smith
Publisher:OpenStax - Rice University
Algebra: Structure And Method, Book 1
Algebra
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:McDougal Littell
Glencoe Algebra 1, Student Edition, 9780079039897...
Algebra
ISBN:9780079039897
Author:Carter
Publisher:McGraw Hill
Find number of persons in a part with 66 handshakes Combinations; Author: Anil Kumar;https://www.youtube.com/watch?v=33TgLi-wp3E;License: Standard YouTube License, CC-BY
Discrete Math 6.3.1 Permutations and Combinations; Author: Kimberly Brehm;https://www.youtube.com/watch?v=J1m9sB5XZQc;License: Standard YouTube License, CC-BY
How to use permutations and combinations; Author: Mario's Math Tutoring;https://www.youtube.com/watch?v=NEGxh_D7yKU;License: Standard YouTube License, CC-BY
Permutations and Combinations | Counting | Don't Memorise; Author: Don't Memorise;https://www.youtube.com/watch?v=0NAASclUm4k;License: Standard Youtube License
Permutations and Combinations Tutorial; Author: The Organic Chemistry Tutor;https://www.youtube.com/watch?v=XJnIdRXUi7A;License: Standard YouTube License, CC-BY