题目内容
在横线里填上适当的数.
5÷
=(5×
)÷(
×
)=5×
=
;
÷
=(
×
)÷(
×
)=
×
=
;
÷
=(
×
)÷1=
×
=
.
5÷
| 2 |
| 3 |
| 3 |
| 2 |
| 3 |
| 2 |
| 2 |
| 3 |
| 3 |
| 2 |
| 3 |
| 2 |
| 3 |
| 2 |
| 15 |
| 2 |
| 15 |
| 2 |
| 2 |
| 7 |
| 9 |
| 14 |
| 2 |
| 7 |
| 14 |
| 9 |
| 14 |
| 9 |
| 9 |
| 14 |
| 14 |
| 9 |
| 2 |
| 7 |
| 14 |
| 9 |
| 14 |
| 9 |
| 4 |
| 9 |
| 4 |
| 9 |
| 1 |
| 2 |
| 3 |
| 5 |
| 1 |
| 2 |
| 5 |
| 3 |
| 5 |
| 3 |
| 1 |
| 2 |
| 5 |
| 3 |
| 5 |
| 3 |
| 5 |
| 6 |
| 5 |
| 6 |
分析:根据商不变的性质,被除数和除数同时乘或除以相同的数(0除外),商不变.据此解答.
解答:解:在横线里填上适当的数.
5÷
=(5×
)÷(
×
)
=5×
=
;
÷
=(
×
)÷(
×
)
=
×
=
;
÷
=(
×
)÷1
=
×
=
.
故答案为:
、
、
;
、
、
;
、
、
.
5÷
| 2 |
| 3 |
=(5×
| 3 |
| 2 |
| 2 |
| 3 |
| 3 |
| 2 |
=5×
| 3 |
| 2 |
=
| 15 |
| 2 |
| 2 |
| 7 |
| 9 |
| 14 |
=(
| 2 |
| 7 |
| 14 |
| 9 |
| 9 |
| 14 |
| 14 |
| 9 |
=
| 2 |
| 7 |
| 14 |
| 9 |
=
| 4 |
| 9 |
| 1 |
| 2 |
| 3 |
| 5 |
=(
| 1 |
| 2 |
| 5 |
| 3 |
=
| 1 |
| 2 |
| 5 |
| 3 |
=
| 5 |
| 6 |
故答案为:
| 3 |
| 2 |
| 3 |
| 2 |
| 15 |
| 2 |
| 14 |
| 9 |
| 14 |
| 9 |
| 4 |
| 9 |
| 5 |
| 3 |
| 5 |
| 3 |
| 5 |
| 6 |
点评:此题考查的目的是理解掌握商不变的性质及分数除法的计算法则.
练习册系列答案
相关题目