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How can you find the product of a number and power of 10 without using paper and pencil or a calculator?

How can you find the product of a number and power of 10 without using paper and pencil or a calculator?
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How can you find the product of a number and power of 10 without using paper and pencil or a calculator?

User Deosha
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1 Answer

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Use mental calculation. Do working in your head
User Darek Rossman
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8.4k points
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