answer: an estimate 309 times 29 for is 9000
work:
to find an estimate, round.
round 309 to 300
and 29 to 30
you can make this super easy by multiplying 3 x 3 and then adding on the three zero places at the end.
3 x 3 = 9
9000
so, 309 x 29 is about 9000.
