题目内容
解方程.
| X-80%=3.2 |
(1)
X+
X=22,
(
+
)X=22,
X=22,
X×
=22×
,
X=24;
(2)X-80%=3.2,
X-0.8=3.2,
X-0.8+0.8=3.2+0.8,
X=4.
| 2 |
| 3 |
| 1 |
| 4 |
(
| 2 |
| 3 |
| 1 |
| 4 |
| 11 |
| 12 |
| 11 |
| 12 |
| 12 |
| 11 |
| 12 |
| 11 |
X=24;
(2)X-80%=3.2,
X-0.8=3.2,
X-0.8+0.8=3.2+0.8,
X=4.
练习册系列答案
相关题目