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14 September, 19:18

What is 13.5+5.7+36.5 using mental math

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Answers (2)
  1. 14 September, 20:04
    0
    55.7

    you can add 13.5 and 36.5 in your head that will get rid of the decimal so you get 50. then add 5.7 which is 55.7
  2. 14 September, 21:42
    0
    Answer: 55.7

    Step-by-step explanation:

    .5 +.5 = 1

    1 + 13 = 14

    6 + 4 = 10

    10 + 10 = 20

    20 + 30 = 50

    50 + 5.7 = 55.7
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