一个数乘0.01,也就是把这个数缩小到它的 .
4.5×2.1= 45×=0.945 ×2.1=0.0945
1×0.941 4.25×1.34.25 1.5×2815×2.8
3.68×03.68 7.68×1.987.68 1.2÷0.81.2×0.8
0.6×5= 0.04×1.8= 0.16×0.5= 1.25×80 =
4×0.25= 2.8×0.4= 32×0.25= 0.01×0.01 =