问题
解答题
计算: (1)4-(-3) (2)-8÷4+3×(-5) (3)(-12)×(
(4)-32-50÷(-5)2-1. |
答案
(1)4-(-3)=4+3=7;
(2)-8÷4+3×(-5)=-2-15=-17;
(3)(-12)×(
-1 6
+1 4
)=-2+3-4=-3; 1 3
(4)-32-50÷(-5)2-1=-9-50÷25-1=-9-2-1=-12;.