题目内容
a÷
÷
×
=a______.
| 2 |
| 3 |
| 3 |
| 4 |
| 1 |
| 2 |
a÷
÷
×
,
=a×
×
×
,
=a×(
×
×
),
=a×(2×
),
=a×1,
=a;
故答案为:正确.
| 2 |
| 3 |
| 3 |
| 4 |
| 1 |
| 2 |
=a×
| 3 |
| 2 |
| 4 |
| 3 |
| 1 |
| 2 |
=a×(
| 3 |
| 2 |
| 4 |
| 3 |
| 1 |
| 2 |
=a×(2×
| 1 |
| 2 |
=a×1,
=a;
故答案为:正确.
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