题目内容
计算:
(1)(-
)3-|-0.25|+(
-
)÷
(2)
-
+
-(-1)2012.
(1)(-
1 |
2 |
1 |
2 |
1 |
3 |
1 |
6 |
(2)
3 | -8 |
25 |
(-2)2 |
(1)原式=-
-0.25+
×6-
×6
=-
-0.25+3-2
=-
+3-2
=
;
(2)原式=-2-5+2-1
=-6.
1 |
8 |
1 |
2 |
1 |
3 |
=-
1 |
8 |
=-
3 |
8 |
=
5 |
8 |
(2)原式=-2-5+2-1
=-6.
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