Worksheet on Estimating Sums and Differences



In 4th grade worksheet on estimating sums and differences, all grade students can practice the questions on estimations. This exercise sheet on estimating sums and differences can be practiced by the students to get more ideas to find the estimated sum and difference to its nearest ten, hundred and thousand.


1. Find the estimated sum to the nearest ten and also find the actual sum:

(i) 1 6 7 + 2 5 9 = ______ .

(ii) 3 6 4 + 5 8 9 = ______ .

(iii) 7 6 9 + 5 5 6 = ______ .

(iv) 2 5 0 + 3 7 3 = ______ .

(v) 4 6 3 + 2 7 9 = ______ .

(vi) 8 5 0 + 4 9 9 = ______ .



2. Estimate each sum to the nearest hundred and also the actual sum:

(i) 9 7 5 + 7 7 8 = ______ .

(ii) 4 1 7 0 + 2 3 9 7 = ______ .

(iii) 7 3 0 0 + 5 3 1 5 = ______ .

(v) 5 6 8 5 + 3 4 7 4 = ______ .

(v) 2 3 9 7 + 5 6 6 8 = ______ .

(vi) 3 7 1 3 + 5 1 3 5 = ______ .



3. Find the estimated sum to the nearest thousand and also the actual sum:

(i) 3 1 8 0 6 + 4 7 8 0 8 + 2 2 3 9 7 = ______ .

(ii) 4 3 1 4 1 + 4 1 3 1 7 + 3 5 7 0 9 = ______ .

(iii) 5 0 0 9 3 + 2 9 9 7 9 + 3 1 1 8 4 = ______ .



4. Find the estimated difference to the nearest ten and also the actual difference:

(i) 5 8 - 4 7 = ______ .

(ii) 1 9 1 - 1 6 8 = ______ .

(iii) 8 6 7 - 2 4 9 = ______ .

(iv) 5 3 9 - 3 2 4 = ______ .

(v) 7 4 7 - 3 6 8 = ______ .

(vi) 9 8 6 - 7 7 8 = ______ .



5. Estimate the difference to the nearest hundred and also the actual difference:

(i) 3 9 1 6 - 1 4 5 8 = ______ .

(ii) 4 6 1 5 - 2 2 8 6 = ______ .

(iii) 9 4 3 8 - 4 1 5 9 = ______ .

(iv) 5 8 6 1 - 2 9 4 4 = ______ .

(v) 8 3 5 1 - 2 9 7 4 = ______ .

(vi) 4 7 6 2 - 2 0 8 5 = ______ .



6. Estimate each difference to the nearest thousand and also find the actual difference:

(i) 6 7 5 1 9 - 4 1 3 8 9 = ______ .

(ii) 7 1 6 0 2 7 - 5 4 9 5 6 8 = ______ .

(iii) 4 5 6 5 0 7 - 2 4 7 5 6 9 = ______ .


If students have any queries regarding the questions in the worksheet on estimating sums and differences please fill-up the below comment box so that we can help you.

However, suggestions for further improvement, from all quarters would be greatly appreciated.




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