Question

4. Estimate the sum of 9.327 + 5.72 + 4.132 to one decimal place.18.729

Answer 1

The sum for those numbers is 19.179 NOT 18.729. HOWEVER the Estimation of the sum and the answer for this question is 19.2 because the decimal place you are finding has a number to its right that is greater to that decimal place so you add the one to the decimal place you are finding.

Answer 2

Hence, the estimate value of 9.327 + 5.72 + 4.132 to one decimal place is:

19.2

Explanation:

We have to Estimate the sum of 9.327 + 5.72 + 4.132 to one decimal place

We find the sum of these numbers:

Sum= 9.327+5.72+4.132

= 19.179

Now we have to estimate the value to one decimal place

so, on approximating the value, we get the sum=19.2

Hence, the estimate value of 9.327 + 5.72 + 4.132 to one decimal place is:

19.2