Revision of Exponents: Grade 7

Which one is greater?

• $2^8$

• $8^2$

Which of the values are equal (or mean the same) ?

(i) 1⁴ (ii) 0³ (iii) 5º (iv )5¹

• (i) and (ii)

• (i) and (iii)

• (i) and (iv)

• (ii) and (iv)

 $2^{10}\ \div2^7=\ 2^?$  

What will come in place of a question mark?  

• 3

• 17

• -3 

• 10 ÷ 7

 $\left[8^5\times8^6\right]^3\ =8^?$  

What will come in place of a question mark?

(a)  

 $If\ \ 3^{x\ +1}=81$ Then find the value of x. 

(a)  

 $\left(29^0-23^0\right)\times16^0$  

Find the value of the above expression 

• 2

• 3

• 1

• 0

 $\left(-2\right)^{97\ }$  will be a positive answer or negative answer?

• Negative 

• Positive 

 $\left(-5\right)^3-\left(-1\right)^7$  
Find the value of the above

• -125 

• -126

• -124

• -130