Khan Academy

Description: Lindsay finds a pattern from multiplying whole numbers by 10. We'll start with one that maybe we already know, let's start something like two times 10. And maybe we know the solution but let's think about more than just the solution, let's think about what it really means to multiply two times 10. Let's go to one more, maybe one that we don't know the answer to off the top of our head, let's try something like 13 times 10.

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