问题
解答题
计算 (1)-34+(-8)-5-(-23) (2)-32-2÷(-
(3)
|
答案
(1)原式=-34-8-5+23
=-42-5+23
=-47+23
=-24;
(2)原式=-9-2×(-2)
=-9+2
=-5;
(3)原式=-4+4×
÷23 2
=-4+6×1 2
=-4+3
=-1.
计算 (1)-34+(-8)-5-(-23) (2)-32-2÷(-
(3)
|
(1)原式=-34-8-5+23
=-42-5+23
=-47+23
=-24;
(2)原式=-9-2×(-2)
=-9+2
=-5;
(3)原式=-4+4×
÷23 2
=-4+6×1 2
=-4+3
=-1.