Go Math Ch 6 Reteach 6.1-6.8, 6.10-6.11

3/8 + 3/4 =

• 1-1/8

• 1-4/8

• 1-3/8

• 1-2/8

2/3+1/4=

• 3/12

• 1/7

• 11/12

• 3/7

5/6 + 7/12=

• 12/18

• 1-5/12

• 1-12/18

• 1-6/18

7/8-1/2=

• 2/16

• 6/16

• 6/6

• 3/8

5/6-1/3=

• 1/2

• 2/3

• 4/6

• 2/8

9/10-4/5=

• 5/15

• 5/10

• 1/10

• 2/10

Prime factors are the factors of a given number that are prime. A prime number has exactly two factors, 1 and itself. A composite number has more than two factors. For example, the prime factors of 12 are 2x2x3.

Knowing this, what are the prime factors of:

8

• 2x2x2

• 2x2x4

• 1x2x2x2

• 8x1

Prime factors are the factors of a given number that are prime. A prime number has exactly two factors, 1 and itself. A composite number has more than two factors. For example, the prime factors of 12 are 2x2x3.

Knowing this, what are the prime factors of:

15

Mark all that apply.

• 1x3x5

• 1x15

• 3x5

• 5x3

Prime factors are the factors of a given number that are prime. A prime number has exactly two factors, 1 and itself. A composite number has more than two factors. For example, the prime factors of 12 are 2x2x3.

Knowing this, what are the prime factors of:

30

Mark all that apply,

• 1 x 6 x 5

• 3x2x5

• 6x2x5

• 5x2x3

What is this number as the product of prime factors?

 $8$  

• 1 x8 

• 2 x 2 x 2 

• 2 x 2 x 2 x 2

• 2 x 4 x 1