Question

Estimate the sum to the nearest ten . Verify its reasonableness by actual addition 53 and 28

Answer 1

53 is between 50 and 60 and rounding off to the nearest 10 is 50

28 is between 20 and 30 and rounding off to the nearest 10 is 30

Sum = 50+30=80

Actual addition= 53+28= 81

81 is between 80 and 90 and rounding off to the nearest 10 is 80

Hence Verified

Answer 2

Answer:

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Step-by-step explanation

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