题目内容
计算
(1)11+(-14)+18
(2)(-48)÷8-2×(-6)
(3)(
-
+
)×(-48)
(4)(-1)4+(-2)3÷4+22.
(1)11+(-14)+18
(2)(-48)÷8-2×(-6)
(3)(
1 |
6 |
1 |
4 |
1 |
12 |
(4)(-1)4+(-2)3÷4+22.
(1)原式=11-14+18
=-3+18
=15;
(2)原式=-6+12
=6;
(3)原式=
×(-48)-
×(-48)+
×(-48)
=-8+12+(-4)
=0;
(4)原式=1-8÷4+4
=1+(-2)+4
=3.
=-3+18
=15;
(2)原式=-6+12
=6;
(3)原式=
1 |
6 |
1 |
4 |
1 |
12 |
=-8+12+(-4)
=0;
(4)原式=1-8÷4+4
=1+(-2)+4
=3.
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