10-04-2018
Mathematics

contestada

Explain how 8+2 can help you solve 80+20.

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Аноним Аноним

10-04-2018

80 + 20 = 10( 8 + 2) = 10 (10) = 100

---------------- OR --------------------------

80 + 20 = 8 tens + 2 tens = 10 tens.

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