题目内容
计算
(1)-34+(-8)-5-(-23)
(2)-32-2÷(-
)
(3)
+
×
÷(-
)2.
(1)-34+(-8)-5-(-23)
(2)-32-2÷(-
| 1 |
| 2 |
(3)
| 3 | -64 |
| 16 |
|
| 2 |
(1)原式=-34-8-5+23
=-42-5+23
=-47+23
=-24;
(2)原式=-9-2×(-2)
=-9+2
=-5;
(3)原式=-4+4×
÷2
=-4+6×
=-4+3
=-1.
=-42-5+23
=-47+23
=-24;
(2)原式=-9-2×(-2)
=-9+2
=-5;
(3)原式=-4+4×
| 3 |
| 2 |
=-4+6×
| 1 |
| 2 |
=-4+3
=-1.
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