4×7+236 18-3×60
7×2+66+7×2 (25+15)÷57
4 × 6 -4=8
36 ÷ 4+2=6
56÷8= 81-45= 9+4×3= 45+54=
7×5-5= 34-4×7= 45÷9= 9×9=
①52-(32+18)
②56-5×9
③(60-48)÷3
④6×8-19