题目内容
神机妙算.
×
=
×
=
×
=
18×
=
×
=
×14=
| 5 |
| 9 |
| 6 |
| 15 |
| 5 |
| 18 |
| 3 |
| 5 |
| 2 |
| 3 |
| 4 |
| 5 |
18×
| 5 |
| 24 |
| 4 |
| 9 |
| 3 |
| 4 |
| 13 |
| 42 |
分析:根据分数乘法的计算法则,分子相乘的积作分子,分母相乘的积作分母,能约分的先约分计算简便.
解答:解:
×
=
;
×
=
;
×
=
;
18×
=
;
×
=
;
×14=
.
| 5 |
| 9 |
| 6 |
| 15 |
| 2 |
| 9 |
| 5 |
| 18 |
| 3 |
| 5 |
| 1 |
| 6 |
| 2 |
| 3 |
| 4 |
| 5 |
| 8 |
| 15 |
18×
| 5 |
| 24 |
| 15 |
| 4 |
| 4 |
| 9 |
| 3 |
| 4 |
| 1 |
| 3 |
| 13 |
| 42 |
| 13 |
| 3 |
点评:此题考查的目的是理解掌握分数乘法的计算法则,并且能够正确熟练地进行计算.
练习册系列答案
相关题目