问题
解答题
计算题 (1)(-12)-5+(-14)-(-39) (2)(-24)×(
(3)-42÷(-4)×
|
答案
(1)原式=-12-5-14+39=-31+39=8;
(2)原式=-3+8-6-8=-9;
(3)原式=-16×(-
)×1 4
-1 4
×(-12)+5=9.1 4
计算题 (1)(-12)-5+(-14)-(-39) (2)(-24)×(
(3)-42÷(-4)×
|
(1)原式=-12-5-14+39=-31+39=8;
(2)原式=-3+8-6-8=-9;
(3)原式=-16×(-
)×1 4
-1 4
×(-12)+5=9.1 4