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
