题目内容
| 4 |
| 5 |
X÷
| 15 |
| 4 |
| 5 |
| 8 |
25X=
| 7 |
| 8 |
(1)
X=40,
X×
=40×
,
X=50;
(2)X÷
=
,
X÷
×
=
×
,
X=
;
(3)25X=
×16,
25X=14,
25X÷25=14÷25,
X=
.
| 4 |
| 5 |
| 4 |
| 5 |
| 5 |
| 4 |
| 5 |
| 4 |
X=50;
(2)X÷
| 15 |
| 4 |
| 5 |
| 8 |
X÷
| 15 |
| 4 |
| 15 |
| 4 |
| 5 |
| 8 |
| 15 |
| 4 |
X=
| 75 |
| 32 |
(3)25X=
| 7 |
| 8 |
25X=14,
25X÷25=14÷25,
X=
| 14 |
| 25 |
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