Question

Round off the following number to the nearest tens: 39

Answer 1

Step 1: Check the ones place digit of the given number.

Here, the ones place digit of 39 is 9.

Step 2: If ones place digit $<$ 5, replace the ones digit by 0 and keep other digits same. If ones place digit is $⩾$5, replace the ones digit by 0 and increase the tens digit by 1 keeping other digits same.

Since, 9 $>$5, the ones digit is replaced by 0 and tens digit is increased by 1.

So, 39 rounded off to the nearest tens is 40.

Hence, 39 rounded off to the nearest tens is 40.