题目内容
64
×
=______.
| 1 |
| 17 |
| 1 |
| 9 |
64
×
,
=(63+1
)×
,
=63×
+
×
,
=7+
,
=7
;
故答案为:7
.
| 1 |
| 17 |
| 1 |
| 9 |
=(63+1
| 1 |
| 17 |
| 1 |
| 9 |
=63×
| 1 |
| 9 |
| 18 |
| 17 |
| 1 |
| 9 |
=7+
| 2 |
| 17 |
=7
| 2 |
| 17 |
故答案为:7
| 2 |
| 17 |
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