⑴0.15×23×20 ⑵19.1+6.8×40÷1.6
⑶1.92÷80÷0.125 ⑷2.56÷(1.58+2.7×0.6)
(7.5+2.5×2)×1.4 1.25×3.48×0.08÷0.1
8.7+1.3-0.65+0.35 3.7×10.3-3.7×0.3
8.8×3.7+6.3×8.8
(7.6﹣3.6÷2)×1.5
4.4×2.5
0.25×3.2×12.5
10.6×55.4﹣55.4×0.6
3.7×10.2
1.2÷0.75+18.4
27.5÷2.5÷0.4
(30﹣19.8)÷0.5+31.2
7.28+3.2÷2.5 6.1×3.6+3.6×3.9
9.8×25 1.25×0.7×0.8
32.4+2.5÷0.4
5.4×2.7+7.3×5.4
12.5×88
3.6÷[(8.1+1.9)×0.2]