| (1)(-5)-(+7)-(-6)+4 (2)-0.5-(-3
(3)-32-(-2)3×4÷|-
|
答案:
| (1)原式=-5-7+6+4 =-12+10 =-2;(2)原式=-0.5+3.25+2.75-7.5 =-8+6 =-2;(3)原式=-9+8×4×4 =-9+128 =119. |

| (1)(-5)-(+7)-(-6)+4 (2)-0.5-(-3
(3)-32-(-2)3×4÷|-
|
答案:
| (1)原式=-5-7+6+4 =-12+10 =-2;(2)原式=-0.5+3.25+2.75-7.5 =-8+6 =-2;(3)原式=-9+8×4×4 =-9+128 =119. |