计算:(1)-6+(-4)-(-2)(2)(?13)?(?25)+(?23)+0.6(3)(?37)×0.125×(?213)×(?8)(4)|?214|÷(
计算:(1)-6+(-4)-(-2)(2)(?13)?(?25)+(?23)+0.6(3)(?37)×0.125×(?213)×(?8)(4)|?214|÷(?3)×13...
计算:(1)-6+(-4)-(-2)(2)(?13)?(?25)+(?23)+0.6(3)(?37)×0.125×(?213)×(?8)(4)|?214|÷(?3)×13(5)(?30)×(13?56?310)(6)?3?[?5+(1?12×115)÷(?2)].
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(1)原式=-6-4+2=-10+2=-8;
(2)原式=-
+
-
+
=-1+
+
=0;
(3)原式=(-
)×
×(-
)×(-8)=1×(-1)=-1;
(4)原式=
×(-
)×
=(-
)×
=?
;
(5)原式=(-30)×(
-
-
)=(-30)×(-
-
)=(-30)×(-
-
)=(-30)×(-
)=24;
(6)原式=-3-[-5+(1-
)×(-
)]=-3-[-5+
×(-
)]=-3-[-5-
]=-3+5+
=2
(2)原式=-
1 |
3 |
2 |
5 |
2 |
3 |
3 |
5 |
2 |
5 |
3 |
5 |
(3)原式=(-
3 |
7 |
1 |
8 |
7 |
3 |
(4)原式=
9 |
4 |
1 |
3 |
1 |
3 |
3 |
4 |
1 |
3 |
1 |
4 |
(5)原式=(-30)×(
2 |
6 |
5 |
6 |
3 |
10 |
1 |
2 |
3 |
10 |
5 |
10 |
3 |
10 |
8 |
10 |
(6)原式=-3-[-5+(1-
3 |
5 |
1 |
2 |
2 |
5 |
1 |
2 |
1 |
5 |
1 |
5 |