题目内容
计算题
(1)24+(-14)+(-16)+6
(2)(
-
+
)×(-36)
(3)(-3)2-[(-
)+
]÷
(4)0.25×(-2)3-[4+(-
)2+1]+(-1)2009.
(1)24+(-14)+(-16)+6
(2)(
| 1 |
| 2 |
| 5 |
| 9 |
| 7 |
| 12 |
(3)(-3)2-[(-
| 2 |
| 3 |
| 1 |
| 4 |
| 1 |
| 12 |
(4)0.25×(-2)3-[4+(-
| 2 |
| 3 |
(1)原式=(24+16)+[(-14)+(-16)]
=40+(-40)
=0;
(2)原式=-18+20-21
=-19;
(3)原式=9-(-
)×12
=9+11
=20;
(4)原式=0.25×(-8)-(4+
+1)-1
=-2-10-1
=-13.
=40+(-40)
=0;
(2)原式=-18+20-21
=-19;
(3)原式=9-(-
| 11 |
| 12 |
=9+11
=20;
(4)原式=0.25×(-8)-(4+
| 4 |
| 9 |
=-2-10-1
=-13.
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