问题
解答题
计算: (1)-3×4-2×(-
(2)(
|
答案
(1)原式=-12+1-4÷2
=-12+1-2
=-13;
(2)原式=
×(-36)-1 2
×(-36)+1 3
×(-36)1 4
=-18+12-9
=-15.
计算: (1)-3×4-2×(-
(2)(
|
(1)原式=-12+1-4÷2
=-12+1-2
=-13;
(2)原式=
×(-36)-1 2
×(-36)+1 3
×(-36)1 4
=-18+12-9
=-15.