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题目
题型:解答题难度:一般来源:不详
计算题
(1)(-20)+(-18)-(-14)
(2)(+
3
2
)-
5
12
-
5
2
+(-
7
12
)

(3)-36÷(
1
2
+
5
6
-
7
12

(4)-14-
1
6
×[3-(-3)2]

(5)(-
2
3
-
5
6
+
11
12
1
24

(6)(-2)3÷16-(-0.125)×(-4)2
(7)-8-[-7+(1-
2
3
×0.6)÷(-3)]

(8)|-
7
9
|÷(
2
3
-
1
5
)-
1
3
×(-4)2
答案
(1)(-20)+(-18)-(-14)
=-38+14
=-24;

(2)(+
3
2
)-
5
12
-
5
2
+(-
7
12
)

=(
3
2
-
5
2
)-(
5
12
+
7
12

=-1-1
=-2;

(3)-36÷(
1
2
+
5
6
-
7
12

=-36÷
3
4

=-48;

(4)-14-
1
6
×[3-(-3)2]

=-1-
1
6
×[3-9]
=-1-
1
6
×[-6]
=-1+1
=0;

(5)(-
2
3
-
5
6
+
11
12
1
24

=(-
2
3
-
5
6
+
11
12
)×24
=-
2
3
×24-
5
6
×24+
11
12
×24
=-16-20+22
=-14;

(6)(-2)3÷16-(-0.125)×(-4)2
=-8÷16-(-0.125)×16
=-0.5+2
=1.5;

(7)-8-[-7+(1-
2
3
×0.6)÷(-3)]

=-8-[-7+(1-0.4)÷(-3)]
=-8-[-7+0.6÷(-3)]
=-8-[-7-0.2]
=-8+7.2
=-0.8;

(8)|-
7
9
|÷(
2
3
-
1
5
)-
1
3
×(-4)2

=
7
9
÷
7
15
-
1
3
×16
=
5
3
-
16
3

=-3
2
3
核心考点
试题【计算题(1)(-20)+(-18)-(-14)(2)(+32)-512-52+(-712)(3)-36÷(12+56-712)(4)-14-16×[3-(-3)】;主要考察你对有理数的混合运算等知识点的理解。[详细]
举一反三
计算题
(1)1+
1
4
-
1
2

(2)-1100-(1-0.5)÷3×[3-(-3)2].
题型:解答题难度:一般| 查看答案
细心算一算
①4.8-(-1.2)+(-6);
(-
3
4
)×(-1
1
2
)÷(-2
1
4
)

③1-(5-7)÷(-3)3
-62×(
2
3
-
1
2
)-23
题型:解答题难度:一般| 查看答案
(1)-12012-(1-0.5)×
1
3

(2)(
9
30
-
1
15
)×(-30)

( 3)(-
3
4
2+(-
2
3
+1)×0
(4)49
24
25
×(-5)
(5)(-6)×8-(-2)2-(-4)2×5
(6)(
1
3
-
1
6
+
1
4
)÷(-
1
24
题型:解答题难度:一般| 查看答案
计算:-3的平方等于______;-1÷(-3)×3=______;(-2012)0-2012=______.
题型:填空题难度:一般| 查看答案
计算:
(-12)+(-23)-(-33);
(-24)×(
3
4
-
5
6
+
7
12
);
31+(-28)+28+69; 
27-18+(-7)-32;
(-1.2)-7-(-3.2)+(-1);
8×(-
4
5
)×
1
16

16÷(-2)-(-
1
8
)×(-4);
(-2)×(-7)×(-5)×(-
1
7
).
题型:解答题难度:一般| 查看答案
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