Question

find x :
(200)102030 +(36898642x)142589​

Answer 1

$\huge\pink{\underline{✪Solution}}$

578 x 161

Rounding off 578 to the nearest hundreds, we get 600

And, rounding off 161 to the nearest hundreds, we get 200

Therefore, 600 x 200 = 1,20,000

It means that estimate of 578 x 161 is equal to 1,20,000 according to the general rule.

Answer 2

VERIFIED ANSWER :

578 x 161

Rounding off 578 to the nearest hundreds, we get 600

And, rounding off 161 to the nearest hundreds, we get 200

Therefore, 600 x 200 = 1,20,000

It means that estimate of 578 x 161 is equal to 1,20,000 according to the general rule.

hope it helps you