问题
解答题
计算 (1)11+(-14)+18 (2)(-48)÷8-2×(-6) (3)(
(4)(-1)4+(-2)3÷4+22. |
答案
(1)原式=11-14+18
=-3+18
=15;
(2)原式=-6+12
=6;
(3)原式=
×(-48)-1 6
×(-48)+1 4
×(-48)1 12
=-8+12+(-4)
=0;
(4)原式=1-8÷4+4
=1+(-2)+4
=3.
计算 (1)11+(-14)+18 (2)(-48)÷8-2×(-6) (3)(
(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)-1 6
×(-48)+1 4
×(-48)1 12
=-8+12+(-4)
=0;
(4)原式=1-8÷4+4
=1+(-2)+4
=3.