(31 +33)÷8 = 80-9×7+5 = 40-5×8+19 = 9×4+9×6-71 = (42+18)÷6 = (54-46)×9 = (17 +46)÷9 = (29 +43)÷8 = 50-4×7 = 42-9×3 = 73-8×9 = 81-7×8 = 48+24÷4 = 54÷9-6 = 20-56÷8-13 = 40÷5+32 -24 = 70-6×8+18 = 80 -36÷6×5 = 90-4×7+15 = 64÷8×9 = споисн