40 x 2 = 80
Chat with our AI personalities
38 x 2 =
The answer is 2,800. To estimate the product of 2 numbers, you round to the nearest ten or hundred. In this case, you would round 73 to 70, and 403 to 400, to make it easy to multiply. 70 x 400 = 2,800
TO estimate you will round 90 to 100 and round 30 to 50 (or you can leave it be) then 100 X 30 (100 x50) 3000or 50000 :)
overestimate
5 x 4 = 20