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7 May, 18:00

Find each product mentally. 7 times 3.8

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  1. 7 May, 18:25
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    To do it mentally means to do it in your head

    first do 7 * 3 = 21 in your head

    than do 7 * 0.8 = 5.6 (this might be hard to do in your head but you know 7*8 = 56 so add a decimal since it is 0.8 not 8)

    Add : 21 + 5.6 = 26.6

    Final Answer : 26.6
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