Simplifying & Evaluating Expressions (Unit 3)

Evaluate b² + 3 if b = 9

• 9

• 12

• 81

• 84

Evaluate 5m + 7 if m = 5

• 12

• 25

• 32

Evaluate 3x - 7 if x = 12

• 36

• 29

• 28

• 13

Evaluate 3b + 4c if b = 9 and c = 3

• 27

• 12

• 15

• 39

Which property is this example?
3(5+y)=15+3y

• Commutative property of multiplication
• Associative Property of multiplication
• Distributive property of multiplication
• Identity property of multiplication

12(3 + 4) =

• 36 + 48
• 15 + 16
• 123 + 124
• 0.84

Find the missing number using the distributive property.
10 + 20  =  2(5 +  __)

• 2
• 4
• 5
• 10

There are 6 groups of kids with 3 boys and 2 girls in each of the groups. Which expression represents this situation?

• 6 x 3 + 2
• (6 x 3) x 2
• (6 + 3) x (6 + 2)
• 6 (3 + 2) 

Combine Like Terms:

3x + 7 + 2x - 5

• 7x

• 5x + 2

• 5x + 12

• 12x - 5

Distribute and then Combine Like Terms:

2(5x + 6) + 7

• 10x + 12

• 10x + 7

• 10x + 19

• 5x + 19