题目内容
计算13
×
,最简便的方法是( )
| 5 |
| 7 |
| 3 |
| 16 |
A.(13+
| B.(14-
| C.(16-2
| D.(10+3
|
∵13
×
=(16-2
)×
=16×
-2
×
=3-1=2.
∴计算13
×
,最简便的方法是(16-2
)×
,
故选:C.
| 5 |
| 7 |
| 3 |
| 16 |
| 2 |
| 7 |
| 3 |
| 16 |
| 3 |
| 16 |
| 2 |
| 7 |
| 3 |
| 16 |
∴计算13
| 5 |
| 7 |
| 3 |
| 16 |
| 2 |
| 7 |
| 3 |
| 16 |
故选:C.
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