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Indice

Total questions: 15

Worksheet time: 11mins

Name
Class
Date
1.

34=3^{-4}=?  

a)

34-3^4  

b)

81-81  

c)

181\frac{1}{81}  

d)

181-\frac{1}{81}  

2.

(15)1=\left(\frac{1}{5}\right)^{-1}=?  

a)

15-\frac{1}{5}  

b)

15\frac{1}{5}  

c)

-5

d)

5

3.

(13)0=\left(-13\right)^0=?  

a)

13-13  

b)

1-1  

c)

00  

d)

11  

4.

(2)5=\left(-2\right)^{-5}=?  

a)

32-32   

b)

132-\frac{1}{32}  

c)

132\frac{1}{32}  

d)

3232  

5.

78÷710=7^{-8}\div7^{-10}=?  

a)

727^{-2}  

b)

7187^{-18}  

c)

149\frac{1}{49}  

d)

4949  

6.

(23)1×(16)0=\left(\frac{2}{3}\right)^{-1}\times\left(\frac{1}{6}\right)^0=?  

a)

00  

b)

23\frac{2}{3}  

c)

32\frac{3}{2}  

d)

11  

7.

x7×x0=x^7\times x^0=?  

a)

x0x^0  

b)

x7x^7  

c)

7x7x  

d)

00  

8.

x5÷x5=x^{-5}\div x^5=?  

a)

1x10\frac{1}{x^{10}}  

b)

x0x^0  

c)

x10x^{10}  

d)

00  

9.

a4×a7÷a5=a^4\times a^7\div a^5=?  

a)

a2a^2  

b)

a6a^6  

c)

a12a^{12}  

d)

a16a^{16}  

10.

(a2)7×a4=\left(a^{-2}\right)^7\times a^4=?  

a)

1a10\frac{1}{a^{10}}  

b)

1a13\frac{1}{a^{13}}  

c)

a5a^5  

d)

a10a^{10}  

11.

6b32b5=\frac{6b^3}{2b^5}=?  

a)

3b23b^2  

b)

3b83b^8  

c)

3b2\frac{3}{b^2}  

d)

3b8\frac{3}{b^8}  

12.

(2a2b2)3a2b7=\frac{\left(2a^2b^2\right)^3}{a^2b^7}=?  

a)

6a4b\frac{6a^4}{b}  

b)

6a4b6a^4b  

c)

8a4b\frac{8a^4}{b}  

d)

8a4b8a^4b  

13.

下列哪项 不等于1?

a)

a2÷a2a^2\div a^2  

b)

xy÷xyxy\div xy  

c)

a5×a5a^5\times a^{-5}  

d)

a3a2\frac{a^3}{a^2}  

14.

a10×a9=a^{-10}\times a^9=?  

a)

a-a  

b)

aa  

c)

1a-\frac{1}{a}  

d)

1a\frac{1}{a}  

15.

下列哪项是错误的?

a)

(99)0=1\left(-99\right)^0=1  

b)

(99)0=1\left(99\right)^0=1  

c)

(1)98=1\left(-1\right)^{98}=1  

d)

(1)99=1\left(-1\right)^{99}=1