题目内容
解比例.
|
|
|
①
:
=
:x
x=
×
x÷
=
×
÷
x=
②
=
40x=24×5
40x÷40=120÷40
x=下
③
=
5x=6.5×8
5x=52
5x÷5=52÷5
x=10.4
| 1 |
| 下 |
| 1 |
| 20 |
| 5 |
| 9 |
| 1 |
| 下 |
| 1 |
| 20 |
| 5 |
| 9 |
| 1 |
| 下 |
| 1 |
| 下 |
| 1 |
| 20 |
| 5 |
| 9 |
| 1 |
| 下 |
x=
| 1 |
| 12 |
②
| 40 |
| 24 |
| 5 |
| x |
40x=24×5
40x÷40=120÷40
x=下
③
| 6.5 |
| x |
| 5 |
| 8 |
5x=6.5×8
5x=52
5x÷5=52÷5
x=10.4
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