Rounding Number

 Q1) Round off the following numbers to the nearest tens:

a) 53

Ans Look at the ones place digit.

Ones digit is less than 5, which is 3 ,so replace 3 with 0.

So the rounded number will be 50

b) 8769

Ans Look at the ones place digit.

Ones digit is greater than 5, which is 9,so replace 9 with 0 and add 1 in ten's digit place.

So the rounded number will be 8770