问题
解答题
计算 (1)(-17)+(-13)-18; (2)(-2)÷
(3)(
(4)-10+8÷(-2)2-(-2)2×(-3) |
答案
(1)原式=-(17+13+18)=-48;
(2)原式=(-2)×3×(-5)=30;
(3)原式=6+3-1=8;
(4)原式=-10+8÷4-4×(-3)
=-10+2+12
=4.
计算 (1)(-17)+(-13)-18; (2)(-2)÷
(3)(
(4)-10+8÷(-2)2-(-2)2×(-3) |
(1)原式=-(17+13+18)=-48;
(2)原式=(-2)×3×(-5)=30;
(3)原式=6+3-1=8;
(4)原式=-10+8÷4-4×(-3)
=-10+2+12
=4.