(1)108÷(105÷102)(2)-(23x2y3z)2(3)(x-y)9÷(y-x)2÷(y-x)4(4)(x3)4-3x4-(x2)4(5)(12)-1

(1)108÷(105÷102)(2)-(23x2y3z)2(3)(x-y)9÷(y-x)2÷(y-x)4(4)(x3)4-3x4-(x2)4(5)(12)-1

题型:解答题难度:一般来源:不详
(1)108÷(105÷102
(2)-(
2
3
x2y3z)2

(3)(x-y)9÷(y-x)2÷(y-x)4
(4)(x34-3x4-(x24
(5)(
1
2
)-1-4×(-2)-2+(π-3.14)0-(
1
3
)-2

(6)(3
1
8
)12×(
8
25
)11×(-2)3

(7)(5x-3y)(3y+5x)
(8)(-3a32-a3+(-4a)2-a7+(-5a33
答案
(1)原式=108÷103
=105

(2)原式=-
4
9
x4y6z2

(3)原式=(x-y)7÷(x-y)4
=(x-y)3

(4)原式=x12-3x12
=-2x12

(5)原式=2-1+1-9
=-7;

(6)原式=(
25
8
×
8
25
11×
25
8
×(-8)
=-25;

(7)原式=25x2-9y2

(8)原式=9a9+16a9-125a9
=-100a9
举一反三
计算:(-
1
3
)-2
=______.
题型:填空题难度:一般| 查看答案
计算题:
(1)(-2xy23
(2)(-2x)-(3x2y)
(3)-(x23-x4-x2
(4)(-3)0+(-
1
2
)-2÷|-2|

(5)(3x2y-2x+1)(-2xy)
(6)(x-3y)(x-
1
2
y)
题型:解答题难度:一般| 查看答案
下列各式不正确的是(  )
A.20100=1B.(
2
3
-4=(
3
2
4
C.(-
3
4
-3=(
4
3
3
D.10-3=0.001
题型:单选题难度:简单| 查看答案
计算:
(1)5s2t-2s2t;
(2)-22+20-|-3|×(-3)-1
(3)(a2b)(-2ab2)(-0.5a4b5);
(4)4m2-(-2m+3)(-2m-3).
题型:解答题难度:一般| 查看答案
计算:-23+(
1
2
)-1+(π-3)0
题型:解答题难度:一般| 查看答案
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