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18 July, 22:45

Sue want to use mental math 7x53

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Answers (2)
  1. 18 July, 23:18
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    53 - 3 = 50

    7 times 50 = 350

    7 times 3 = 21

    350 + 21 = 371.
  2. 19 July, 01:00
    0
    Break the 53 into 10 10 10 10 and 10

    Then 10x7=70

    10x7=70

    10x7=70

    10x7=70

    10x7=70
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