Algebraic Expressions

Evaluate 4y

y = 3

• 7
• 12

Evaluate 2a + 4b 
if a = 10     and    b = 6

• 20
• 24
• 44
• 4

How many terms are in the expression
3x + 2y + z

• 5
• 2
• 4
• 3

Identify the variable(s) in the expression 3x +  9

• x
• y
• 9
• 3x

(7 + 41) ÷ 2 – 15

• 19
• 9
• 25
• 3

Write an algebraic expression for "12 more than number". 

• x + 12
• 12x
• x - 12

Write an algebraic expression for "8 less than a number".          

• 8x
• x - 8
• 8 - x

Evaluate 2r + 1

r = 3

• 24

• 5

• 7

• 8

Evaluate m²

m = 7

• 9

• 14

• 49

• 51

Evaluate 5m + 7

m = 5

• 12

• 25

• 32