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(1)-150+250(2)635+2−12−6.6(3)(−512)×815÷(−32)(4)-8+4÷(-2)(5)−14−(1+0.5)×13÷(−4)(6)(14+56−12)×12.

题目详情
(1)-150+250
(2)6
3
5
+2−
1
2
−6.6
(3)(−
5
12
8
15
÷(−
3
2
)
(4)-8+4÷(-2)
(5)14−(1+0.5)×
1
3
÷(−4)
(6)(
1
4
+
5
6
1
2
)×12.

6
3
5
+2−
1
2
−6.6
(3)(−
5
12
8
15
÷(−
3
2
)
(4)-8+4÷(-2)
(5)14−(1+0.5)×
1
3
÷(−4)
(6)(
1
4
+
5
6
1
2
)×12.
3
5
3355
1
2
1122
(−
5
12
8
15
÷(−
3
2
)
(4)-8+4÷(-2)
(5)14−(1+0.5)×
1
3
÷(−4)
(6)(
1
4
+
5
6
1
2
)×12.
5
12
551212
8
15
881515
3
2
3322

14−(1+0.5)×
1
3
÷(−4)
(6)(
1
4
+
5
6
1
2
)×12.
14−(1+0.5)×
1
3
÷(−4)
(6)(
1
4
+
5
6
1
2
)×12.
14−(1+0.5)×
1
3
÷(−4)
(6)(
1
4
+
5
6
1
2
)×12.
4−(1+0.5)×
1
3
÷(−4)
(6)(
1
4
+
5
6
1
2
)×12.
1
3
1133
(
1
4
+
5
6
1
2
)×12.
1
4
1144
5
6
5566
1
2
1122
▼优质解答
答案和解析
(1)原式=100;

(2)原式=
5
12
×
8
15
×
2
3

=
4
27

(3)原式=-8+(-2)
=-10;

(4)原式=-1-
3
2
×
1
3
×(-
1
4

=-1+
1
8

=-
7
8


(5)原式=
1
4
×12+
5
6
×12-
1
2
×12
=3+10-6
=7.
5
12
555121212×
8
15
×
2
3

=
4
27

(3)原式=-8+(-2)
=-10;

(4)原式=-1-
3
2
×
1
3
×(-
1
4

=-1+
1
8

=-
7
8


(5)原式=
1
4
×12+
5
6
×12-
1
2
×12
=3+10-6
=7.
8
15
888151515×
2
3

=
4
27

(3)原式=-8+(-2)
=-10;

(4)原式=-1-
3
2
×
1
3
×(-
1
4

=-1+
1
8

=-
7
8


(5)原式=
1
4
×12+
5
6
×12-
1
2
×12
=3+10-6
=7.
2
3
222333
=
4
27

(3)原式=-8+(-2)
=-10;

(4)原式=-1-
3
2
×
1
3
×(-
1
4

=-1+
1
8

=-
7
8


(5)原式=
1
4
×12+
5
6
×12-
1
2
×12
=3+10-6
=7.
4
27
444272727;
(3)原式=-8+(-2)
=-10;

(4)原式=-1-
3
2
×
1
3
×(-
1
4

=-1+
1
8

=-
7
8


(5)原式=
1
4
×12+
5
6
×12-
1
2
×12
=3+10-6
=7.
3
2
333222×
1
3
×(-
1
4

=-1+
1
8

=-
7
8


(5)原式=
1
4
×12+
5
6
×12-
1
2
×12
=3+10-6
=7.
1
3
111333×(-
1
4

=-1+
1
8

=-
7
8


(5)原式=
1
4
×12+
5
6
×12-
1
2
×12
=3+10-6
=7.
1
4
111444)
=-1+
1
8

=-
7
8


(5)原式=
1
4
×12+
5
6
×12-
1
2
×12
=3+10-6
=7.
1
8
111888
=-
7
8


(5)原式=
1
4
×12+
5
6
×12-
1
2
×12
=3+10-6
=7.
7
8
777888;

(5)原式=
1
4
×12+
5
6
×12-
1
2
×12
=3+10-6
=7.
1
4
111444×12+
5
6
×12-
1
2
×12
=3+10-6
=7.
5
6
555666×12-
1
2
×12
=3+10-6
=7.
1
2
111222×12
=3+10-6
=7.