RS Aggarwal Vikash Aggarwal Class 4 Activity Book Composite Mathematics Activity Sheet 52 Solution

RS Aggarwal Vikash Aggarwal Class 4 Activity Book Composite Mathematics Activity Sheet 52 Solution

Activity Sheet – 52

Estimate the given differences by rounding off two-digit numbers to the nearest ten, three-digit numbers to the nearest hundred and numbers with four or more digits to the nearest thousand.

          Problem Rounded numbers Estimated difference
1 67 – 46 70 – 50 20
2 82 – 29 80 – 30 50
3 96 – 38 100 – 40 60
4 597 – 345 600 – 300 300
5 616 – 288 600 – 300 300
6 7075 – 1097 7000 – 1000 6000
7 9336 – 3871 9000 – 4000 5000
8 1023 – 487 1000 – 500 500
9 26666 – 11589 27000 – 12000 15000
10 54865 – 17278 55000 – 17000 38000
11 23134 – 7756 23000 – 8000 35000
12 75852 – 9197 76000 – 9000 67000

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