计算下列各题(1)5+(-7)(2)-8-(-17)(3)(-3)-4-(-9)(4)6-(3-8)-|-7|(5)?16?(?14)+(?12
计算下列各题(1)5+(-7)(2)-8-(-17)(3)(-3)-4-(-9)(4)6-(3-8)-|-7|(5)?16?(?14)+(?12)?23(6)5×(-7)...
计算下列各题(1)5+(-7)(2)-8-(-17)(3)(-3)-4-(-9)(4)6-(3-8)-|-7|(5)?16?(?14)+(?12)?23(6)5×(-7)(7)48÷[4×(-2)-(-4)](8)[?13×(?12)+(?19)÷23]÷(?2)(9)(?0.125)×(?47)÷(?18)×7(10)(712?415+56?34)÷(?160).
展开
1个回答
展开全部
(1)原式=-(7-5)=-2;
(2)原式=-8+17=9;
(3)原式=-3-4+9=-7+9=2;
(4)原式=6-(-5)-7=6+5-7=4;
(5)原式=-
+
-
-
=-
-
=-
;
(6)原式=-5×7=-35;
(7)原式=48÷(-8+4)=48÷(-4)=-12;
(8)原式=(
-
)÷(-2)=0;
(9)原式=-
×
×8×7=-4;
(10)原式=(
-
+
-
)×(-60)=-35+16-50+45=-24.
(2)原式=-8+17=9;
(3)原式=-3-4+9=-7+9=2;
(4)原式=6-(-5)-7=6+5-7=4;
(5)原式=-
1 |
6 |
1 |
4 |
1 |
2 |
2 |
3 |
5 |
6 |
1 |
4 |
13 |
12 |
(6)原式=-5×7=-35;
(7)原式=48÷(-8+4)=48÷(-4)=-12;
(8)原式=(
1 |
6 |
1 |
6 |
(9)原式=-
1 |
8 |
4 |
7 |
(10)原式=(
7 |
12 |
4 |
15 |
5 |
6 |
3 |
4 |
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