
计算:(1)-3+5×(-4)-12÷(-3)(2)(13?34+56)÷(?112)(3)?12012?6÷3×13(4)?3?(13)2+|?3|3?(
计算:(1)-3+5×(-4)-12÷(-3)(2)(13?34+56)÷(?112)(3)?12012?6÷3×13(4)?3?(13)2+|?3|3?(?13)....
计算:(1)-3+5×(-4)-12÷(-3)(2)(13?34+56)÷(?112)(3)?12012?6÷3×13(4)?3?(13)2+|?3|3?(?13).
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(1)原式=-3-20+4
=-23+4
=-19;
(2)原式=(
-
+
)×(-12)
=
×(-12)-
×(-12)+
×(-12)
=-4+9-10
=-5;
(3)原式=-1-2×
=-1
;
(4)原式=-3×
+27+
=27.
=-23+4
=-19;
(2)原式=(
1 |
3 |
3 |
4 |
5 |
6 |
=
1 |
3 |
3 |
4 |
5 |
6 |
=-4+9-10
=-5;
(3)原式=-1-2×
1 |
3 |
=-1
2 |
3 |
(4)原式=-3×
1 |
9 |
1 |
3 |
=27.
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