Estimate the product of 78×21, choose a method

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asked Aug 26, 2020 165k views

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Abu Hasan Masud · Answer 1 · 2020-09-01T15:35:21+0000

Answer:

1638

Explanation:

The best way, and the most used way is long multiplication. What you do is multiply parts of you number(like 78x1, and 78x20) and then add them together, not sure if it helps but here are some examples

Estimate the product of 78×21, choose a method-example-1

Estimate the product of 78×21, choose a method-example-2

Estimate the product of 78×21, choose a method

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Estimate the product of 78×21, choose a method