Question

There were 68 pencils in the drawer. Rahul placed 19 more pencils in it. There are nearly pencils in the drawer.

• A. 90
• B. 100
• C. 80
• D. 110

Answer 1

The correct option is A 90

The total number of pencils in the drawer is $68+19.$

But, this sum is best estimated by the sum $70+20=90.$

$6870\underset{–}{19}+\to \underset{–}{20}+\underset{–}{87}\underset{–}{90}$

Thus, there are nearly 90 pencils in the drawer.

$68+19=87$ is indeed close to 90.