题目内容
直接写得数.
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|
1.25÷
|
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10÷
|
|
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分析:①⑦⑧把除法改为乘法,约分计算;②④约分计算;③把小数化为分数,把除法改为乘法,约分计算;⑤⑥把除法改为乘法,计算即可.
解答:解:
×
÷
=
;
×
×
=
; 1.25÷
=
;
×
=
;
10÷
=100;
÷
=
;
÷5=
;
×
÷
×
=
;
| 1 |
| 5 |
| 1 |
| 5 |
| 1 |
| 5 |
| 1 |
| 5 |
| 8 |
| 9 |
| 3 |
| 8 |
| 2 |
| 3 |
| 2 |
| 9 |
| 35 |
| 4 |
| 1 |
| 7 |
| 4 |
| 9 |
| 3 |
| 10 |
| 2 |
| 15 |
10÷
| 1 |
| 10 |
| 2 |
| 9 |
| 3 |
| 8 |
| 16 |
| 27 |
| 5 |
| 6 |
| 1 |
| 6 |
| 4 |
| 7 |
| 1 |
| 4 |
| 4 |
| 7 |
| 1 |
| 4 |
| 1 |
| 16 |
点评:此题主要考查了乘除法的相互转化,以及通过约分进行简算.
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