7.62+2.5×8 9.8÷1.4-1.5
2.5×71.71×0.4 1.25×9.93-1.93×1.25
20-x=12.6
1.5x-3.8=5.2
13(5+x)=169
45.9÷2.7
61.8÷0.15
55.25÷13
3.78÷0.25
①31.5÷4.2﹣2.6×2.5
②3.52×8.6+8.6×0.48
③11+[(0.4+0.04)×0.5]
④0.59+2.94+1.41
⑤1.08÷(0.4+0.5)×0.6
⑥12.5×3.2×2.5
0.2×1.40.2 4.2÷0.64.2
1.25÷1000.01×1.25 0.4×0.40.4÷0.4