题目内容
| x |
| 15 |
| 7 |
| 16 |
| 7 |
| 8 |
| 32 |
| 9 |
| 1 |
| 2 |
| 1 |
| 3 |
| 5 |
| 6 |
(1)
=30,
×15=30×15,
x=450,
(2)
:x=
:
,
x=
×
,
x×
=
×
,
x=
,
(2)
x+
x=
,
x=
,
x×
=
×
,
x=1.
| x |
| 15 |
| x |
| 15 |
x=450,
(2)
| 7 |
| 16 |
| 7 |
| 8 |
| 32 |
| 9 |
| 7 |
| 8 |
| 7 |
| 16 |
| 32 |
| 9 |
| 7 |
| 8 |
| 8 |
| 7 |
| 14 |
| 9 |
| 8 |
| 7 |
x=
| 16 |
| 9 |
(2)
| 1 |
| 2 |
| 1 |
| 3 |
| 5 |
| 6 |
| 5 |
| 6 |
| 5 |
| 6 |
| 5 |
| 6 |
| 6 |
| 5 |
| 5 |
| 6 |
| 6 |
| 5 |
x=1.
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