问题
解答题
计算:
(1)12-(-18)+(-7)-15
(2)-9+5×(-6)-12÷(-6)
答案
(1)原式=12+18-7-15
=30-7-15
=8;
(2)原式=-9-30+2
=-39+2
=-37.
计算:
(1)12-(-18)+(-7)-15
(2)-9+5×(-6)-12÷(-6)
(1)原式=12+18-7-15
=30-7-15
=8;
(2)原式=-9-30+2
=-39+2
=-37.