NUMBER THEORY AND FRACTIONS REVIEW

NUMBER THEORYPrime Number- A whole number

that can only be divided by 1 and itselfEx. 2,3,5,7,11,13…

Composite Number- A whole number that has more than two factors.Ex. 4,6,8,9,10,12…

80

121

43

Simplify

80 = 1

121 = 12

43 = 64

Factors of 24:

1,2,3,4,6,8,12,24

Multiples of 4:

4,8,12,16,20,24,28…

FIND THE FACTOR TREE FOR 30

Shade 1½

Is each fraction less than one, equal to one, or greater than one?

4/4

3/7

9/5

4/4 = 1

3/7 < 1

9/5 > 1

Simplify or rewrite the following fractions:

3/9

9/3

15/4

3/9 = 1/3

9/3 = 3

15/4 = 3¾

Add or Subtract

Multiply or Divide