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5 November, 18:18

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

+5
Answers (2)
  1. 5 November, 18:37
    0
    42 rounds to 40

    36 rounds to 40

    40+40=80

    The exact answer is 78
  2. 5 November, 18:40
    0
    When rounding they both end up as 40 so 40 plus 40 is 80 and that's ur answer
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