问题 填空题

根据12×45=54.直接填空.

1.2×4.5=______

0.12×0.45=______

1.2×______=54

______×4.5=0.54.

答案

121.2×4.5=545.4;

0.12×0.45=0.054

1.2×45=54;

0.12×4.5=0.54.

故答案为:545.4,0.054,45,0.12.

单项选择题
单项选择题 A1型题