题目内容
计算下列各题.
(1)
+
;
(2)
-
+
;
(3)
+
+
;
(4)
+|
-2|-
÷(-
)×
.
(1)
| 1 |
| 3 |
| 0.09 |
| 1 |
| 5 |
| 0.25 |
(2)
(-
|
| (-6)2 |
1-(
|
(3)
| 3 | -1 |
| 3 | (-1)2 |
| (-1)2 |
(4)
| 2 |
| 2 |
| (-16)2 |
| 1 |
| 2 |
| 3 | -8 |
(1)原式=
+
=
×
+
×
=
=0.2;
(2)原式=
-6+
=-
;
(3)原式=-1+1+1
=1;
(4)原式=
+|
-2|-
÷(-
)×
=
+2-
-16÷(-
)×(-2)
=2-64
=-62.
| 1 |
| 3 |
| 0.09 |
| 1 |
| 5 |
| 0.25 |
=
| 1 |
| 3 |
| 3 |
| 10 |
| 1 |
| 5 |
| 1 |
| 2 |
=
| 2 |
| 10 |
=0.2;
(2)原式=
| 1 |
| 5 |
| 3 |
| 5 |
=-
| 26 |
| 5 |
(3)原式=-1+1+1
=1;
(4)原式=
| 2 |
| 2 |
| (-16)2 |
| 1 |
| 2 |
| 3 | -8 |
=
| 2 |
| 2 |
| 1 |
| 2 |
=2-64
=-62.
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