早教吧 育儿知识 作业答案 考试题库 百科 知识分享

计算:(1)312+(−12)−(−13)+223(2)(-5)×6+(-125)÷(-5)(3)1+(-2)+|-2-3|-5(4)(23−14−38+524)×(−48)(5)8+2×32-(-2×3)2(6)−12012×[(−2)5−32−514÷(−17)]−2.5.

题目详情
计算:
(1)3
1
2
+(−
1
2
)−(−
1
3
)+2
2
3

(2)(-5)×6+(-125)÷(-5)
(3)1+(-2)+|-2-3|-5
(4)(
2
3
1
4
3
8
+
5
24
)×(−48)
(5)8+2×32-(-2×3)2
(6)12012×[(−2)5−32−
5
14
÷(−
1
7
)]−2.5.

3
1
2
+(−
1
2
)−(−
1
3
)+2
2
3

(2)(-5)×6+(-125)÷(-5)
(3)1+(-2)+|-2-3|-5
(4)(
2
3
1
4
3
8
+
5
24
)×(−48)
(5)8+2×32-(-2×3)2
(6)12012×[(−2)5−32−
5
14
÷(−
1
7
)]−2.5.
1
2
1122
1
2
1122
1
3
1133
2
3
2233


(
2
3
1
4
3
8
+
5
24
)×(−48)
(5)8+2×32-(-2×3)2
(6)12012×[(−2)5−32−
5
14
÷(−
1
7
)]−2.5.
2
3
2233
1
4
1144
3
8
3388
5
24
552424
22
12012×[(−2)5−32−
5
14
÷(−
1
7
)]−2.5.
12012×[(−2)5−32−
5
14
÷(−
1
7
)]−2.5.
12012×[(−2)5−32−
5
14
÷(−
1
7
)]−2.5.
2012×[(−2)5−32−
5
14
÷(−
1
7
)]−2.5.
)5−32−
5
14
÷(−
1
7
)]−2.5.
)5−32−
5
14
÷(−
1
7
)]−2.5.
5−32−
5
14
÷(−
1
7
)]−2.5.
32−
5
14
÷(−
1
7
)]−2.5.
32−
5
14
÷(−
1
7
)]−2.5.
2−
5
14
÷(−
1
7
)]−2.5.
5
14
551414
1
7
1177
▼优质解答
答案和解析
(1)原式=3
1
2
-
1
2
+
1
3
+2
2
3
=3+3=6;
(2)原式=-30+25=-5;
(3)原式=1-2+5-5=-1;
(4)原式=-32+12+18-10=-42+30=-12;
(5)原式=8+18-36=-10;
(6)原式=-1×(-32-9+2.5)-2.5=32+9-2.5-2.5=36.
1
2
111222-
1
2
+
1
3
+2
2
3
=3+3=6;
(2)原式=-30+25=-5;
(3)原式=1-2+5-5=-1;
(4)原式=-32+12+18-10=-42+30=-12;
(5)原式=8+18-36=-10;
(6)原式=-1×(-32-9+2.5)-2.5=32+9-2.5-2.5=36.
1
2
111222+
1
3
+2
2
3
=3+3=6;
(2)原式=-30+25=-5;
(3)原式=1-2+5-5=-1;
(4)原式=-32+12+18-10=-42+30=-12;
(5)原式=8+18-36=-10;
(6)原式=-1×(-32-9+2.5)-2.5=32+9-2.5-2.5=36.
1
3
111333+2
2
3
=3+3=6;
(2)原式=-30+25=-5;
(3)原式=1-2+5-5=-1;
(4)原式=-32+12+18-10=-42+30=-12;
(5)原式=8+18-36=-10;
(6)原式=-1×(-32-9+2.5)-2.5=32+9-2.5-2.5=36.
2
3
222333=3+3=6;
(2)原式=-30+25=-5;
(3)原式=1-2+5-5=-1;
(4)原式=-32+12+18-10=-42+30=-12;
(5)原式=8+18-36=-10;
(6)原式=-1×(-32-9+2.5)-2.5=32+9-2.5-2.5=36.