题目内容
简便计算:(1)9
×17
(2)-|-
|×|-0.25|-(-5
)×(+
)
| 16 |
| 17 |
(2)-|-
| 11 |
| 5 |
| 1 |
| 4 |
| 11 |
| 5 |
(1)原式=(10-
)×17,
=10×17-
×17,
=169;
(2)原式=-
×
+
×
,
=
×(-
+
),
=11.
| 1 |
| 17 |
=10×17-
| 1 |
| 17 |
=169;
(2)原式=-
| 11 |
| 5 |
| 1 |
| 4 |
| 11 |
| 5 |
| 21 |
| 4 |
=
| 11 |
| 5 |
| 1 |
| 4 |
| 21 |
| 4 |
=11.
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