问题
解答题
计算 (1)-3-5+4; (2)(-
(3)8-(-4)÷22+(-3)×(-4); (4)-14-[2-(-32]. |
答案
(1)原式=-8+4
=-4;
(2)原式=(-
-3 4
+1 2
)×361 6
=-
×36-3 4
×36+1 2
×361 6
=-27-18+6
-=-45+6
=-39;
(3)原式=8-(-4)÷4+12
=8-(-1)+12
=8+1+12
=21;
(4)原式=-1-[2-(-9)]
=-1-[2+9]
=-1-11
=-12.