题目内容
| 3 |
| 4 |
| 3 |
| 8 |
| ( ) |
| ( ) |
| ( ) |
| ( ) |
| ( ) |
| ( ) |
1
1
;| 5 |
| 21 |
| 4 |
| 7 |
| 3 |
| 10 |
| ( ) |
| ( ) |
| ( ) |
| ( ) |
| ( ) |
| ( ) |
| 1 |
| 8 |
| 1 |
| 8 |
分析:依据除以一个数等于乘这个数的倒数,把题干算式中的除法化为乘法,再依据分数乘法计算方法即可解答.
解答:解:
÷2÷
,
=
×
×
,
=
×
,
=1;
÷
×
,
=
×
×
,
=
×
,
=
.
故答案为:1,
.
| 3 |
| 4 |
| 3 |
| 8 |
=
| 3 |
| 4 |
| 1 |
| 2 |
| 8 |
| 3 |
=
| 3 |
| 8 |
| 8 |
| 3 |
=1;
| 5 |
| 21 |
| 4 |
| 7 |
| 3 |
| 10 |
=
| 5 |
| 21 |
| 7 |
| 4 |
| 3 |
| 10 |
=
| 5 |
| 12 |
| 3 |
| 10 |
=
| 1 |
| 8 |
故答案为:1,
| 1 |
| 8 |
点评:明确除以一个数等于乘这个数的倒数,是解答本题的关键,依据是分数乘法计算方法.
练习册系列答案
相关题目