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Multiplying by 10's and 100's (also expect 1000's)

Multiplying by 10's and 100's (also expect 1000's)

Author: Amy Kitchens

Here is a video, created by volunteer students on the fast way to multiply by 10's and 100's. We use the concept of place value, saying "ten times greater" and "one hundred times greater" instead of just add one or two zeros to the basic fact. Eventually, students will learn it's just adding zeros, and that's ok, but I just want to reinforce that each zero added is increasing the number 10 times more.

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Multiplying by 10's and 100's (student created)

Come tell me who is in the video! :)