16.25﹣3.2﹣6.8
26.71﹣6.81﹣3.19﹣6.71
⑴ ⑵
①5.8﹣1.9﹣2.1
②×2.5××4
③÷(﹣)×
④83×0.75+17÷
①
②7.5×8×12.5
③
④193﹣16﹣84
①25×32×1.25
②(+0.375)÷(×)
③×+÷7
④6﹣(+)