
计算题(1)+14-10-(-9)+(-5)(2)-12-54-(-32)+(-14)(3)-18+(-7.5)-(-31)-12.5(4)-7×
计算题(1)+14-10-(-9)+(-5)(2)-12-54-(-32)+(-14)(3)-18+(-7.5)-(-31)-12.5(4)-7×(-2)×5(5)-3÷...
计算题(1)+14-10-(-9)+(-5)(2)-12-54-(-32)+(-14)(3)-18+(-7.5)-(-31)-12.5(4)-7×(-2)×5(5)-3÷(-5)×15 (6)(12+56-712)×(-36)
展开
1个回答
展开全部
(1)原式=14-10+9-5=23-15=8;
(2)原式=-
-
+
-
=1-
=-
;
(3)原式=-18-7.5+31-12.5=13-20=-7;
(4)原式=70;
(5)原式=-3×(-
)×
=
;
(6)原式=-18-30+21=-37.
(2)原式=-
1 |
2 |
5 |
4 |
3 |
2 |
1 |
4 |
3 |
2 |
1 |
2 |
(3)原式=-18-7.5+31-12.5=13-20=-7;
(4)原式=70;
(5)原式=-3×(-
1 |
5 |
1 |
5 |
3 |
25 |
(6)原式=-18-30+21=-37.
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询