①3248÷16﹣8.4×2.5
②4.8×(+﹣)
③2.5×96
④64.8÷(22.4﹣1.7﹣15.3)
⑤×[14÷(﹣)]
⑥(+)÷×3.6
57﹣30=
15×4=
4.2÷7=
39+71=
①634﹣3.2×1.5÷0.1
②9.43+0.78﹣3.43
③
④
⑤
⑥
10﹣6.8= ﹣ = 35×1%= 1.25×24= 5× ÷5× =
0.42= 10÷0.02= 5a×7a= 1÷3= 1﹣1÷6=