Åk 6–9
 
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5.2 Exercises - Powers
1. Write the following powers as repeated multiplication.
Ex 22 = 2 · 2
a)
24 =
b)
(-2)4 =
c)
(-2)3 =
d)
23 =
e)
-23 =
 
 
2. Write the correct sign in front of the number.
Ex 52 = +25  
a)
122 = 144  
b)
(-15)3 =  
c)
(-10)4 = 10,000  
d)
-73 = 343  
e)
84 = 4,096  
f)
-54 = 625  
g)
93 =  
h)
-(-6)7 =  
i)
112 = 121  
j)
-(-13)2 = 169  
 


 
3. Calculate the power.
Ex (-5)2 = +25  
a)
-(3)4 =  
b)
(-4)3 =  
c)
-25 =  
d)
73 =  
e)
-(-2)6 =  
f)
-(-6)3 =  
g)
-102 =  
h)
(-2)5 =  
i)
-(-5)2 =  
j)
(-2)6 =