SOLUTION: I hope you can help me.. My daughter is in 4th grade and her homework is "Estimate Decimal Sums and Differences" Her first problem was to "estimate by rounding to the nearest whole

Question 82884: I hope you can help me.. My daughter is in 4th grade and her homework is "Estimate Decimal Sums and Differences" Her first problem was to "estimate by rounding to the nearest whole number" (problem #1) 9.3
- 6.1
_____
I think the answer is 15.0. She says its "15".
Also another problem (problem 2) $45.38
- 18.77
_______
I say its $26.00.. but she says its "26" .. can you tell me which answer is right? Also would 38.872 + 25.913 = 65 or 65.000 Thanks Vikki
Answer by stanbon(48549) (Show Source):
You can put this solution on YOUR website!
Her first problem was to "estimate by rounding to the nearest whole number" (problem #1) 9.3- 6.1 = 3.2
Rounding to the nearest whole number gives an answer of 3.
-
_____
I think the answer is 15.0. She says its "15".
-------------------
Also another problem (problem 2) $45.38 - $18.77 = $21.61
Rounding to the nearest whole number gives an answer of $22
_______
I say its $26.00.. but she says its "26" .. can you tell me which answer is right?
--------------------------
Also would 38.872 + 25.913 = 64.785
Rounding to the nearest whole number gives an anser of 65.
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Cheers,
Stan H.