Question 190613: # 4. Estimate: 0.5162 + 9.436 + 350.12 + 800.25 + 25.78
Answer by jim_thompson5910(35256)   (Show Source):
You can put this solution on YOUR website! # 4
Q: Estimate: 0.5162 + 9.436 + 350.12 + 800.25 + 25.78
A:
First, let's round each number to the whole number:
0.5162 rounds to 1,
9.436 rounds to 9
350.12 rounds to 350
800.25 rounds to 800
25.78 rounds to 26
So the expression simplifies to
1 + 9 + 350 + 800 + 26
Add 1 and 9 to get 10. Add 800 and 26 to get 826
10 + 350 + 826
Add 10 to 350 to get 360
360 + 826
Now add up the remaining numbers
1186
So the estimated answer is 1,186
Note: the true answer is 1,186.1022
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