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计算:(1)-9+12-3+8(2)48×(-16+34-112)(3)(-2)3-2×(-3)+|2-5|-(-1)2010
计算:(1)-9+12-3+8(2)48×(-16+34-112)(3)(-2)3-2×(-3)+|2-5|-(-1)2010....
计算:(1)-9+12-3+8(2)48×(-16+34-112)(3)(-2)3-2×(-3)+|2-5|-(-1)2010.
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(1)-9+12-3+8,
=-12+20,
=8;
(2)48×(-
+
-
),
=48×(?
)+48×
+48×(-
),
=-8+36-4,
=24;
(3)(-2)3-2×(-3)+|2-5|-(-1)2010,
=-8+6+3-1,
=0.
=-12+20,
=8;
(2)48×(-
1 |
6 |
3 |
4 |
1 |
12 |
=48×(?
1 |
6 |
3 |
4 |
1 |
12 |
=-8+36-4,
=24;
(3)(-2)3-2×(-3)+|2-5|-(-1)2010,
=-8+6+3-1,
=0.
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