A Problem Solving Approach to Mathematics for Elementary School Teachers (12th Edition)
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
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Chapter 3.3B, Problem 20A

Factor each of the following:

a. x y   −   y

b. ( x   +   1 ) y   −   ( x   +   1 )

c. a 2 b 3   −   a b 2

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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
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