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.
根据12×45=54.直接填空.
1.2×4.5=______
0.12×0.45=______
1.2×______=54
______×4.5=0.54.
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.