根据“19×28=532”写出下面各题的积．1.9×28=1.9×2.8=1.9×0.28=1.9×280=0.19×2.8=0.19×280=．

Question

根据“19×28=532”写出下面各题的积．

1.9×28=______	1.9×2.8=______
1.9×0.28=______	1.9×280=______
0.19×2.8=______	0.19×280=______．

Answer 1

因为19×28=532
根据乘积的变化规律可得：
1.9×28=53.2
1.9×2.8=5.32
1.9×0.28=0.532
1.9×280=532
0.19×2.8=0.532

0.19×280=53.2
故答案为：53.2；5.32；0.532；532；0.532；53.2