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计算题:(1)(-75%)×(-21)+(-125)×34-75×(-0.24)(2)(−3212)−[514−(+317)+(−514)+(−267)](3)54×34-(-54)×12+54×(-14)(4)1-12×[3×(-23)2-(-1)4]+14÷(-12)2.(5)(-13)2÷(-1)5×

题目详情
计算题:
(1)(-75%)×(-21)+(-125)×
3
4
-75×(-0.24)
(2)(−32
1
2
)−[5
1
4
−(+3
1
7
)+(−5
1
4
)+(−2
6
7
)]
(3)54×
3
4
-(-54)×
1
2
+54×(-
1
4

(4)1-
1
2
×[3×(-
2
3
2-(-1)4]+
1
4
÷(-
1
2
2
(5)(-
1
3
2÷(-1)5×(-3)2-(1
3
8
+2
1
3
-3
3
4
)×(-24).

3
4
-75×(-0.24)
(2)(−32
1
2
)−[5
1
4
−(+3
1
7
)+(−5
1
4
)+(−2
6
7
)]
(3)54×
3
4
-(-54)×
1
2
+54×(-
1
4

(4)1-
1
2
×[3×(-
2
3
2-(-1)4]+
1
4
÷(-
1
2
2
(5)(-
1
3
2÷(-1)5×(-3)2-(1
3
8
+2
1
3
-3
3
4
)×(-24).
3
4
3344
(−32
1
2
)−[5
1
4
−(+3
1
7
)+(−5
1
4
)+(−2
6
7
)]
(3)54×
3
4
-(-54)×
1
2
+54×(-
1
4

(4)1-
1
2
×[3×(-
2
3
2-(-1)4]+
1
4
÷(-
1
2
2
(5)(-
1
3
2÷(-1)5×(-3)2-(1
3
8
+2
1
3
-3
3
4
)×(-24).
1
2
1122
1
4
1144
1
7
1177
1
4
1144
6
7
6677
3
4
-(-54)×
1
2
+54×(-
1
4

(4)1-
1
2
×[3×(-
2
3
2-(-1)4]+
1
4
÷(-
1
2
2
(5)(-
1
3
2÷(-1)5×(-3)2-(1
3
8
+2
1
3
-3
3
4
)×(-24).
3
4
3344
1
2
+54×(-
1
4

(4)1-
1
2
×[3×(-
2
3
2-(-1)4]+
1
4
÷(-
1
2
2
(5)(-
1
3
2÷(-1)5×(-3)2-(1
3
8
+2
1
3
-3
3
4
)×(-24).
1
2
1122
1
4

(4)1-
1
2
×[3×(-
2
3
2-(-1)4]+
1
4
÷(-
1
2
2
(5)(-
1
3
2÷(-1)5×(-3)2-(1
3
8
+2
1
3
-3
3
4
)×(-24).
1
4
1144
1
2
×[3×(-
2
3
2-(-1)4]+
1
4
÷(-
1
2
2
(5)(-
1
3
2÷(-1)5×(-3)2-(1
3
8
+2
1
3
-3
3
4
)×(-24).
1
2
1122
2
3
2-(-1)4]+
1
4
÷(-
1
2
2
(5)(-
1
3
2÷(-1)5×(-3)2-(1
3
8
+2
1
3
-3
3
4
)×(-24).
2
3
223324
1
4
÷(-
1
2
2
(5)(-
1
3
2÷(-1)5×(-3)2-(1
3
8
+2
1
3
-3
3
4
)×(-24).
1
4
1144
1
2
2
(5)(-
1
3
2÷(-1)5×(-3)2-(1
3
8
+2
1
3
-3
3
4
)×(-24).
1
2
11222
1
3
2÷(-1)5×(-3)2-(1
3
8
+2
1
3
-3
3
4
)×(-24).
1
3
1133252
3
8
+2
1
3
-3
3
4
)×(-24).
3
8
3388
1
3
-3
3
4
)×(-24).
1
3
1133
3
4
)×(-24).
3
4
3344
▼优质解答
答案和解析
(1)(-75%)×(-21)+(-125)×
3
4
-75×(-0.24)
=0.75×21-125×0.75+0.75×24
=0.75×(21-125+24)
=0.75×(-80)
=-60;

(2)(−32
1
2
)−[5
1
4
−(+3
1
7
)+(−5
1
4
)+(−2
6
7
)]
=-32
1
2
-[(5
1
4
-5
1
4
)-(3
1
7
+2
6
7
)]
=-32
1
2
-[0-6]
=-32
1
2
+6
=-26
1
2


(3)54×
3
4
-(-54)×
1
2
+54×(-
1
4

=54×(
3
4
+
1
2
-
1
4

=54×1
=54;

(4)1-
1
2
×[3×(-
2
3
2-(-1)4]+
1
4
÷(-
1
2
2
=1-
1
2
×[3×
4
9
-1]+
1
4
÷
1
4

=1-
1
2
×[
4
3
-1]+1
=1-
1
2
×
3
4
333444-75×(-0.24)
=0.75×21-125×0.75+0.75×24
=0.75×(21-125+24)
=0.75×(-80)
=-60;

(2)(−32
1
2
)−[5
1
4
−(+3
1
7
)+(−5
1
4
)+(−2
6
7
)]
=-32
1
2
-[(5
1
4
-5
1
4
)-(3
1
7
+2
6
7
)]
=-32
1
2
-[0-6]
=-32
1
2
+6
=-26
1
2


(3)54×
3
4
-(-54)×
1
2
+54×(-
1
4

=54×(
3
4
+
1
2
-
1
4

=54×1
=54;

(4)1-
1
2
×[3×(-
2
3
2-(-1)4]+
1
4
÷(-
1
2
2
=1-
1
2
×[3×
4
9
-1]+
1
4
÷
1
4

=1-
1
2
×[
4
3
-1]+1
=1-
1
2
×
(−32
1
2
111222)−[5
1
4
111444−(+3
1
7
111777)+(−5
1
4
111444)+(−2
6
7
666777)]
=-32
1
2
-[(5
1
4
-5
1
4
)-(3
1
7
+2
6
7
)]
=-32
1
2
-[0-6]
=-32
1
2
+6
=-26
1
2


(3)54×
3
4
-(-54)×
1
2
+54×(-
1
4

=54×(
3
4
+
1
2
-
1
4

=54×1
=54;

(4)1-
1
2
×[3×(-
2
3
2-(-1)4]+
1
4
÷(-
1
2
2
=1-
1
2
×[3×
4
9
-1]+
1
4
÷
1
4

=1-
1
2
×[
4
3
-1]+1
=1-
1
2
×
1
2
111222-[(5
1
4
-5
1
4
)-(3
1
7
+2
6
7
)]
=-32
1
2
-[0-6]
=-32
1
2
+6
=-26
1
2


(3)54×
3
4
-(-54)×
1
2
+54×(-
1
4

=54×(
3
4
+
1
2
-
1
4

=54×1
=54;

(4)1-
1
2
×[3×(-
2
3
2-(-1)4]+
1
4
÷(-
1
2
2
=1-
1
2
×[3×
4
9
-1]+
1
4
÷
1
4

=1-
1
2
×[
4
3
-1]+1
=1-
1
2
×
1
4
111444-5
1
4
)-(3
1
7
+2
6
7
)]
=-32
1
2
-[0-6]
=-32
1
2
+6
=-26
1
2


(3)54×
3
4
-(-54)×
1
2
+54×(-
1
4

=54×(
3
4
+
1
2
-
1
4

=54×1
=54;

(4)1-
1
2
×[3×(-
2
3
2-(-1)4]+
1
4
÷(-
1
2
2
=1-
1
2
×[3×
4
9
-1]+
1
4
÷
1
4

=1-
1
2
×[
4
3
-1]+1
=1-
1
2
×
1
4
111444)-(3
1
7
+2
6
7
)]
=-32
1
2
-[0-6]
=-32
1
2
+6
=-26
1
2


(3)54×
3
4
-(-54)×
1
2
+54×(-
1
4

=54×(
3
4
+
1
2
-
1
4

=54×1
=54;

(4)1-
1
2
×[3×(-
2
3
2-(-1)4]+
1
4
÷(-
1
2
2
=1-
1
2
×[3×
4
9
-1]+
1
4
÷
1
4

=1-
1
2
×[
4
3
-1]+1
=1-
1
2
×
1
7
111777+2
6
7
)]
=-32
1
2
-[0-6]
=-32
1
2
+6
=-26
1
2


(3)54×
3
4
-(-54)×
1
2
+54×(-
1
4

=54×(
3
4
+
1
2
-
1
4

=54×1
=54;

(4)1-
1
2
×[3×(-
2
3
2-(-1)4]+
1
4
÷(-
1
2
2
=1-
1
2
×[3×
4
9
-1]+
1
4
÷
1
4

=1-
1
2
×[
4
3
-1]+1
=1-
1
2
×
6
7
666777)]
=-32
1
2
-[0-6]
=-32
1
2
+6
=-26
1
2


(3)54×
3
4
-(-54)×
1
2
+54×(-
1
4

=54×(
3
4
+
1
2
-
1
4

=54×1
=54;

(4)1-
1
2
×[3×(-
2
3
2-(-1)4]+
1
4
÷(-
1
2
2
=1-
1
2
×[3×
4
9
-1]+
1
4
÷
1
4

=1-
1
2
×[
4
3
-1]+1
=1-
1
2
×
1
2
111222-[0-6]
=-32
1
2
+6
=-26
1
2


(3)54×
3
4
-(-54)×
1
2
+54×(-
1
4

=54×(
3
4
+
1
2
-
1
4

=54×1
=54;

(4)1-
1
2
×[3×(-
2
3
2-(-1)4]+
1
4
÷(-
1
2
2
=1-
1
2
×[3×
4
9
-1]+
1
4
÷
1
4

=1-
1
2
×[
4
3
-1]+1
=1-
1
2
×
1
2
111222+6
=-26
1
2


(3)54×
3
4
-(-54)×
1
2
+54×(-
1
4

=54×(
3
4
+
1
2
-
1
4

=54×1
=54;

(4)1-
1
2
×[3×(-
2
3
2-(-1)4]+
1
4
÷(-
1
2
2
=1-
1
2
×[3×
4
9
-1]+
1
4
÷
1
4

=1-
1
2
×[
4
3
-1]+1
=1-
1
2
×
1
2
111222;

(3)54×
3
4
-(-54)×
1
2
+54×(-
1
4

=54×(
3
4
+
1
2
-
1
4

=54×1
=54;

(4)1-
1
2
×[3×(-
2
3
2-(-1)4]+
1
4
÷(-
1
2
2
=1-
1
2
×[3×
4
9
-1]+
1
4
÷
1
4

=1-
1
2
×[
4
3
-1]+1
=1-
1
2
×
3
4
333444-(-54)×
1
2
+54×(-
1
4

=54×(
3
4
+
1
2
-
1
4

=54×1
=54;

(4)1-
1
2
×[3×(-
2
3
2-(-1)4]+
1
4
÷(-
1
2
2
=1-
1
2
×[3×
4
9
-1]+
1
4
÷
1
4

=1-
1
2
×[
4
3
-1]+1
=1-
1
2
×
1
2
111222+54×(-
1
4

=54×(
3
4
+
1
2
-
1
4

=54×1
=54;

(4)1-
1
2
×[3×(-
2
3
2-(-1)4]+
1
4
÷(-
1
2
2
=1-
1
2
×[3×
4
9
-1]+
1
4
÷
1
4

=1-
1
2
×[
4
3
-1]+1
=1-
1
2
×
1
4
111444)
=54×(
3
4
+
1
2
-
1
4

=54×1
=54;

(4)1-
1
2
×[3×(-
2
3
2-(-1)4]+
1
4
÷(-
1
2
2
=1-
1
2
×[3×
4
9
-1]+
1
4
÷
1
4

=1-
1
2
×[
4
3
-1]+1
=1-
1
2
×
3
4
333444+
1
2
-
1
4

=54×1
=54;

(4)1-
1
2
×[3×(-
2
3
2-(-1)4]+
1
4
÷(-
1
2
2
=1-
1
2
×[3×
4
9
-1]+
1
4
÷
1
4

=1-
1
2
×[
4
3
-1]+1
=1-
1
2
×
1
2
111222-
1
4

=54×1
=54;

(4)1-
1
2
×[3×(-
2
3
2-(-1)4]+
1
4
÷(-
1
2
2
=1-
1
2
×[3×
4
9
-1]+
1
4
÷
1
4

=1-
1
2
×[
4
3
-1]+1
=1-
1
2
×
1
4
111444)
=54×1
=54;

(4)1-
1
2
×[3×(-
2
3
2-(-1)4]+
1
4
÷(-
1
2
2
=1-
1
2
×[3×
4
9
-1]+
1
4
÷
1
4

=1-
1
2
×[
4
3
-1]+1
=1-
1
2
×
1
2
111222×[3×(-
2
3
2-(-1)4]+
1
4
÷(-
1
2
2
=1-
1
2
×[3×
4
9
-1]+
1
4
÷
1
4

=1-
1
2
×[
4
3
-1]+1
=1-
1
2
×
2
3
222333)22-(-1)44]+
1
4
÷(-
1
2
2
=1-
1
2
×[3×
4
9
-1]+
1
4
÷
1
4

=1-
1
2
×[
4
3
-1]+1
=1-
1
2
×
1
4
111444÷(-
1
2
2
=1-
1
2
×[3×
4
9
-1]+
1
4
÷
1
4

=1-
1
2
×[
4
3
-1]+1
=1-
1
2
×
1
2
111222)22
=1-
1
2
×[3×
4
9
-1]+
1
4
÷
1
4

=1-
1
2
×[
4
3
-1]+1
=1-
1
2
×
1
2
111222×[3×
4
9
-1]+
1
4
÷
1
4

=1-
1
2
×[
4
3
-1]+1
=1-
1
2
×
4
9
444999-1]+
1
4
÷
1
4

=1-
1
2
×[
4
3
-1]+1
=1-
1
2
×
1
4
111444÷
1
4

=1-
1
2
×[
4
3
-1]+1
=1-
1
2
×
1
4
111444
=1-
1
2
×[
4
3
-1]+1
=1-
1
2
×
1
2
111222×[
4
3
-1]+1
=1-
1
2
×
4
3
444333-1]+1
=1-
1
2
×
1
2
111222×