1st Semester Test

What is  $\sqrt{256}$  ?

• 12

• 16

• 65,536

What is  $\sqrt{81}$  ?

• 9

• 18

• 3

• 6

What is  $4^3$  ?

• 12

• 16

• 4

• 64

What is  $2^6$  ?

• 64

• 12

• 34

• 26

What is 2x, when x=8? 

• 10

• 16

• 4

• 24

What is a+b, when a=4 and b=10?

• 6

• 10

• 4

• 14

What is 3x+y, when x=2 and y=4

• 9

• 8

• 10

• 14

What is  $6.78\times10^5$  ?

• 67,800

• 678,000

• 678

• 67.8

What is  $7.98\times10^3$  ?

• 7980

• 798

• 79.8

• 7.980

What is  $2.3\times10^6$  ?

• 23,000

• 230,000

• 2,300,000

• 2,300