24+14 = 37 – 6 = 88 – 53 = 77 + 12=
36 – 5 = 71 + 7 = 23 + 6 = 67 – 4 3 =
40 + 30 – 60 = 90 – 80 + 50 = 23 + 6 – 11 =
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