Gr. 8 Unit 1 - Number Relationships Review

Is 111 Prime or Composite?

• Prime

• Composite

• Neither

The prime factors of 210 are?

• 1, 2, 5, 7

• 2, 3, 7, 9

• 2, 3, 5, 7

• 2, 7, 9

The GCF of 70 and 45 is (write your number only):

(a)  

0.0231 x 10^4 =

• 2.31

• 23.1

• 231

• 2310

4.5 x 10^-2 =

• 450

• 45

• 0.45

• 0.045

Written as a power - 3x3x3x3 is:

• 3^4

• 4^3

• 81

• 1

If x=2, evaluate 3x^2-2x+1

• 6

• 7

• 8

• 9

Evaluate 2^10:

• 100000

• 1000000

• 1000

• 1024

The LCM of 28 and 112 is:

• 4

• 28

• 112

• 224