Video
Multiplying a decimal by a power of 10 (Full video)
Khan Academy
Supporting grades: 5
Description: Learn to multiply 0.44 times 1000 using powers of 10. Created by Sal Khan and Monterey Institute for Technology and Education. A single postage stamp costs $0.44. How much would a roll of 1,000 stamps cost? One is kind of a faster way, but I want to make sure you understand why it works.
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