计算(1)0.5+(-14)-2.75+(-12)(2)10÷[12-(-1+113)]×6(3)-32÷(-3)2+3×(-2)+|-4|(4)-13-(1-

计算(1)0.5+(-14)-2.75+(-12)(2)10÷[12-(-1+113)]×6(3)-32÷(-3)2+3×(-2)+|-4|(4)-13-(1-

题型:解答题难度:一般来源:不详
计算
(1)0.5+(-
1
4
)-2.75+(-
1
2

(2)10÷[
1
2
-(-1+1
1
3
)]×6
(3)-32÷(-3)2+3×(-2)+|-4|
(4)-13-(1-0.5)×
1
3
×
[3-(-3)2]
(5)-7×(-
22
7
)+19×(-
22
7
)-5×(-
22
7

(6)-99
16
17
×34.
答案
(1)原式=0.5-
1
4
-2.75-
1
2

=0.5-
1
2
-
1
4
-2.75
=0-3
=-3;

(2)原式=10÷[
1
2
-
1
3
)×6
=10×6×6
=360;

(3)原式=-9÷9-6+4
=-1-6+4
=-7+4
=-3;

(4)原式=-1-
1
2
×
1
3
×
[3-9]
=1-
1
2
×
1
3
×(-6)
=1+1
=2;

(5)原式=(-7+19-5)×(-
22
7

=7×(-
22
7

=-22;

(6)(-100+
1
17
)×34
=-100×34+
1
17
×34
=-3400+2
=-3398.
举一反三
规定一种运算:

.
a
c
b
d

.
=ad-bc,例如

.
2
4
3
5

.
=2×5-3×4=-2,请你按照这种运算的规定,计算

.
11
-2-3

.
题型:解答题难度:一般| 查看答案
计算:-32-(-2)+|-2|×
1
2
÷
1
7
题型:解答题难度:一般| 查看答案
已知a+b=0,a≠b,则
b
a
(a+1)+
a
b
(b+1)=______.
题型:填空题难度:简单| 查看答案
计算:
(1)(-81)÷
9
4
×
4
9
÷(-16)

(2)-1.5+1.4-(-3.6)-4.3+(-5.2);
(3)(-
3
7
)×0.125×(-2
1
3
)×(-8)

(4)-22×7×(-1)9
题型:解答题难度:一般| 查看答案
下列各式计算结果为负的个数是(  )
(1)(-3)3×(-2)2
(2)(-2)2n+1
(3)-{-[-(-1)]2}
(4)(-3)×(-
1
2
)×0×(-4)

(5)-(-2)-(-5)
A.1B.2C.3D.4
题型:单选题难度:简单| 查看答案
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