0.7×0.4＝ 25×0.04＝ 0.56÷0.7＝ 10÷4＝
6×2.2＝ 0.8×5＝ 2.3×30＝ 0.2×0.5÷0.2×0.5＝
0.54÷0.9= 5.6+1.65= 0×4.75= 4.2÷0.42=
3.6÷0.4= 1÷0.25= 4×0.8= 0.1÷0.05=
2.5×1.6＝ 420÷0.2＝ 0.2×50＝ 2.4÷0.8＝
8.4×0.5＝ 1.5×9＝ 15÷1.5＝ 1.25×72＝
2.5÷0.5＝ 0.42÷0.6＝ 3.5÷0.01＝
0.24×5＝ 12.5×0.8＝ 0.2×50＝
