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b. Explain why this algorithm works. Choose the correct answer below. A. The sum of any three two-digit numbers formed from two three-digit numbers is always equal to the sum of those two three-digit numbers. B. The placement of partial sums under their addends accounts for place value. C. Finding one partial sum at a time eliminates the possibility of intermediate mistakes. D. None of the partial sums were found by adding two of the same number.

b. Explain why this algorithm works. Choose the correct answer below. A. The sum of any three two-digit numbers formed from two three-digit numbers is always equal to the sum of those two three-digit numbers. B. The placement of partial sums under their addends accounts for place value. C. Finding one partial sum at a time eliminates the possibility of intermediate mistakes. D. None of the partial sums were found by adding two of the same number.

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,...
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Janet worked her addition problems by placing the partial sums as shown. a. Use this method to work the accompanying addition problems. b. Explain why this algorithm works. ii. Determine the partial sums and work the provided addition problem. b. Explain why this algorithm works. Choose the correct answer below. 569 + 645 14 10 11 1214 12 1345 468 + 582 10 14 9 1050 O A. The sum of any three two-digit numbers formed from two three-digit numbers is always equal to the sum of those two three-digit numbers. B. The placement of partial sums under their addends accounts for place value. C. Finding one partial sum at a time eliminates the possibility of intermediate mistakes. D. None of the partial sums were found by adding two of the same number.
Transcribed Image Text:Janet worked her addition problems by placing the partial sums as shown. a. Use this method to work the accompanying addition problems. b. Explain why this algorithm works. ii. Determine the partial sums and work the provided addition problem. b. Explain why this algorithm works. Choose the correct answer below. 569 + 645 14 10 11 1214 12 1345 468 + 582 10 14 9 1050 O A. The sum of any three two-digit numbers formed from two three-digit numbers is always equal to the sum of those two three-digit numbers. B. The placement of partial sums under their addends accounts for place value. C. Finding one partial sum at a time eliminates the possibility of intermediate mistakes. D. None of the partial sums were found by adding two of the same number.
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