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10 April, 21:07

42+36 = use rounding or compatible numbers to estimate the sum

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Answers (2)
  1. 10 April, 22:09
    0
    42 rounds to 40

    36 rounds to 40

    40+40=80

    The exact answer is 78
  2. 10 April, 23:06
    0
    When rounding they both end up as 40 so 40 plus 40 is 80 and that's ur answer
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