How can the same array represent BOTH multiplication and division?

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How can the same array represent BOTH multiplication and division?

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Thành Công 2 months 2021-07-30T18:17:02+00:00 1 Answers 1 views 0

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    2021-07-30T18:18:16+00:00

    Answer:

    Step-by-step explanation:

    The same array can represent both multiplication and division because for multiplication you count all the dots in the array. For division you do the array backward. 81÷9= ?. For this problem you would draw out 9 dots, then adding rows you would count to 81. Once you got to 81, the amount of columns you have is your answer. So for that problem your answer is 9.

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )