Question

Add 8.2 and 10.163 and round of the sum of two significant figure.

Answer 1

8.2 + 10.163
= 18.363
= 18.4 or 18
Hope this helps you :)

Answer 2

The required sum is 18.

Given:

8.2 and 10.163

To find:

The sum rounded off to two significant figures

Solution:

The required value can be obtained by adding the given terms and then rounding off the sum.

The required sum=8.2+10.163

=18.363

Now, we will round it off as required.

Since the digit at the place of the tenths is less than 5, the required value will become 18.

Therefore, the required sum is 18.