32+268= 24×25 = 640÷40 = 760-403 =
28×99 = 4024÷8= 45+65+55= 174-48-52 =
420÷35= 50×15×4= 68+72= 460-280=
230×4 = 63÷9×7 = 124-65 = 360÷4 =
27+45 = 46×5-3= 0×12 = 125+75 =
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