①
②7.5×8×12.5
③
④193﹣16﹣84
26.71﹣6.81﹣3.19﹣6.71
16.25﹣3.2﹣6.8
⑴ ⑵
①5.8﹣1.9﹣2.1
②×2.5××4
③÷(﹣)×
④83×0.75+17÷
①25×32×1.25
②(+0.375)÷(×)
③×+÷7
④6﹣(+)
①12.5×(8+0.8)
②+×
③+÷
④26﹣7.28﹣12.72
⑤5.8×4.1+5.9×5.8
⑥÷(+1.4×)