7.25÷0.8÷0.125
4.92÷0.25÷0.4
0.75×18÷0.15
0.34×2.5÷3.4.
计算下面各题.
0.25×4.78×4
32×1.25+1.25×68
10.4﹣9.6×0.5
3.12+3.12×99.
计算下面各题.
7.4×9.9
1.25×(8×0.8)
7.3×4.5﹣28.4.
计算.
2.33×5×4
0.3×0.6×24
3.65﹣2.2×1.1
3.7×0.15+4.02
5.2+3.8×0.93
4.7×3.5﹣0.2.
用简便方法计算下面各题.
(1)2.9×0.45+0.29×4.2+0.029×13
(2)3.84×9.6+0.96×61.6.