136 rounded to the nearest 100 is 100.
It is 140
136
140/100
round 90 to the nearest ten
372 rounded to the nearest hundred is 400
300
You can round 98 up to the nearest ten, giving you 100, and 32 down to the nearest 10, giving you 30.This sum would make 100 x 30, which is 3000, just 136 shy of the actual answer.
100
100
100
100