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Pilar wanted to use estimation to solve a decimal addition problem. She correctly used estimation to rewrite the problem as 12+3+5+6. What could her original problem have been?

A. 12.38+4.45+4.14+6.7
B. 12.5+3.05+5.23+0.6
C. 11.5011+3.6+5.17+5.7
D. 11.75+ 3.299+5.31+6.27

2 Answers

3 votes

Answer:

Its D

Explanation:

Im doing edge 2021 peeps this is the Adding and Subtracting Decimals quiz :)

User Dominick Piganell
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2 votes

Answer:

D

Explanation:

In answer D all of the numbers round to the numbers in the equation if you use the rule where numbers 5 and greater round-up while4 and below round down.

11.75 rounds up to 12

3.299 rounds down to 3

5.31 rounds down to 5

6.27 rounds down to 6

User David Baldin
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5.0k points