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23 July, 18:49

What's 22 * 19 + area model

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  1. 23 July, 21:55
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    (20+2) (10+9)

    Step-by-step explanation:

    The area model is written as (a+b) (c+d). To write a multiplication problem into an area model, split it into numbers which add to it. Multiples of 10 are most commonly used.

    For example 22*19 becomes (20+2) (10+9).
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