Question

The estimated product of 44 and 23 by rounding off the numbers to the nearest ten is .

• A. 800
• B. 900
• C. 700

Answer 1

The correct option is A 800

Given numbers 42 and 23.

Consider number 44, ones digit is 4 which is less than 5.
Hence, ones digit will be replaced with 0 and tens digit will remain the same.

So, 44 will be rounded off to 40.

Similarly consider number 23, ones digit is 3 which is less than 5.
Hence, ones digit will be replaced with 0 and tens digit will remain the same.

So, 23 will be rounded off to 20.

The estimated numbers are 40 and 20.
Estimated product
$=40\times 20=800$