Q 1: There are different ways to check multiplication. Choose the correct answer.|
Estimation lets you know if your answer is "about right"
changing the order of factors and multiplying again
all the other answers
Repeated addition which can be tedious large numbers
Q 2: Check multiplication for 255x49=12,495. Round both factors down and multiply that is 200x40=8000. Round both factors up and multiply that is 300x50=15,000. 8000 < 12,495 < 15,000|
The original number falls between estimated products.
The original number does not falls between estimated products.
The original number is equal to one of the estimated products.