题目内容
解方程:
1.5X=28.5;
X=
;
X÷
=
.
1.5X=28.5;
| 7 |
| 10 |
| 7 |
| 24 |
X÷
| 5 |
| 8 |
| 8 |
| 25 |
(1)1.5X=28.5,
1.5X÷1.5=28.5÷1.5,
X=19;
(2)
X=
,
X÷
=
÷
,
X=
×
,
X=
;
(3)X÷
=
,
X÷
×
=
×
,
X=
.
1.5X÷1.5=28.5÷1.5,
X=19;
(2)
| 7 |
| 10 |
| 7 |
| 24 |
| 7 |
| 10 |
| 7 |
| 10 |
| 7 |
| 24 |
| 7 |
| 10 |
X=
| 7 |
| 24 |
| 10 |
| 7 |
X=
| 5 |
| 12 |
(3)X÷
| 5 |
| 8 |
| 8 |
| 25 |
X÷
| 5 |
| 8 |
| 5 |
| 8 |
| 8 |
| 25 |
| 5 |
| 8 |
X=
| 1 |
| 5 |
练习册系列答案
相关题目