Homework Help is Here – Start Your Trial Now!
Math
Algebra
Section 7-2 Operations on Decimals 379 b. Another student claims that the fractions are not equal and wants to know if there is any way the same calcu- lator can determine which is greater. 19. Angus adds 7.5 and 2.8, and his answer is 9.13. Explain the mistake he made and show how partial sums can help him get the correct answer. 20. Students are asked to add one tenth and 0.1. Several differ- ent answers were submitted: 1.1, 0.11, 0.2, 0.21, and 10.1. For each response, write a decimal number sentence that would produce that answer. 21. Describe and correct Amy's error in the solution. 4.9 X 3.8 186.2 22. Belle knows to move the decimal point in a multiplication problem by counting the number of digits after each factor and adding them together and putting the decimal point in that spot in the product. She turns in the following problem: 3.2 X 2.5 a. Is she correct? b. What is the danger of teaching this method of decimal multiplication? timating the product help avoi

Section 7-2 Operations on Decimals 379 b. Another student claims that the fractions are not equal and wants to know if there is any way the same calcu- lator can determine which is greater. 19. Angus adds 7.5 and 2.8, and his answer is 9.13. Explain the mistake he made and show how partial sums can help him get the correct answer. 20. Students are asked to add one tenth and 0.1. Several differ- ent answers were submitted: 1.1, 0.11, 0.2, 0.21, and 10.1. For each response, write a decimal number sentence that would produce that answer. 21. Describe and correct Amy's error in the solution. 4.9 X 3.8 186.2 22. Belle knows to move the decimal point in a multiplication problem by counting the number of digits after each factor and adding them together and putting the decimal point in that spot in the product. She turns in the following problem: 3.2 X 2.5 a. Is she correct? b. What is the danger of teaching this method of decimal multiplication? timating the product help avoi

Algebra and Trigonometry (6th Edition)
Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
See similar textbooks
icon
Related questions
Question
Section 7-2 Operations on Decimals 379 b. Another student claims that the fractions are not equal and wants to know if there is any way the same calcu- lator can determine which is greater. 19. Angus adds 7.5 and 2.8, and his answer is 9.13. Explain the mistake he made and show how partial sums can help him get the correct answer. 20. Students are asked to add one tenth and 0.1. Several differ- ent answers were submitted: 1.1, 0.11, 0.2, 0.21, and 10.1. For each response, write a decimal number sentence that would produce that answer. 21. Describe and correct Amy's error in the solution. 4.9 X 3.8 186.2 22. Belle knows to move the decimal point in a multiplication problem by counting the number of digits after each factor and adding them together and putting the decimal point in that spot in the product. She turns in the following problem: 3.2 X 2.5 a. Is she correct? b. What is the danger of teaching this method of decimal multiplication? timating the product help avoi
Transcribed Image Text:Section 7-2 Operations on Decimals 379 b. Another student claims that the fractions are not equal and wants to know if there is any way the same calcu- lator can determine which is greater. 19. Angus adds 7.5 and 2.8, and his answer is 9.13. Explain the mistake he made and show how partial sums can help him get the correct answer. 20. Students are asked to add one tenth and 0.1. Several differ- ent answers were submitted: 1.1, 0.11, 0.2, 0.21, and 10.1. For each response, write a decimal number sentence that would produce that answer. 21. Describe and correct Amy's error in the solution. 4.9 X 3.8 186.2 22. Belle knows to move the decimal point in a multiplication problem by counting the number of digits after each factor and adding them together and putting the decimal point in that spot in the product. She turns in the following problem: 3.2 X 2.5 a. Is she correct? b. What is the danger of teaching this method of decimal multiplication? timating the product help avoi
Expert Solution
steps

Step by step

Solved in 1 steps with 4 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Similar questions
Recommended textbooks for you
Algebra and Trigonometry (6th Edition)
Algebra and Trigonometry (6th Edition)
Algebra
ISBN:
9780134463216
Author:
Robert F. Blitzer
Publisher:
PEARSON
Contemporary Abstract Algebra
Contemporary Abstract Algebra
Algebra
ISBN:
9781305657960
Author:
Joseph Gallian
Publisher:
Cengage Learning
Linear Algebra: A Modern Introduction
Linear Algebra: A Modern Introduction
Algebra
ISBN:
9781285463247
Author:
David Poole
Publisher:
Cengage Learning
Algebra And Trigonometry (11th Edition)
Algebra And Trigonometry (11th Edition)
Algebra
ISBN:
9780135163078
Author:
Michael Sullivan
Publisher:
PEARSON
Introduction to Linear Algebra, Fifth Edition
Introduction to Linear Algebra, Fifth Edition
Algebra
ISBN:
9780980232776
Author:
Gilbert Strang
Publisher:
Wellesley-Cambridge Press
College Algebra (Collegiate Math)
College Algebra (Collegiate Math)
Algebra
ISBN:
9780077836344
Author:
Julie Miller, Donna Gerken
Publisher:
McGraw-Hill Education
SEE MORE TEXTBOOKS