18×35-64 30.2-(2.4+5.9)
728÷(36÷9) 937-867÷3
25+65×28
(62﹣47)×39
495﹣375÷5
从图中可以看出:
0.7﹣ = × = + =
15÷ = ( + )×6= 1.25× ×8=