0.2×0.4=0.8
图中被盖住的可能是下面的( )号图。
我发现了:
7.2×0.2 = 10.02-5.96≈ 1÷0.125 =
0.45×0.5÷0.5 = 0.5+2.5×0.4= 4.7÷470 =