Evaluating and Simplifying Expressions

Evaluate 8a - b     if a = 10   and   b = 6

• 74
• 38
• 1000
• 9000

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

• 20
• 24
• 44
• 4

Evaluate m² + 12q if m = 5 and q = -3

• 10

• -25

• -11

• 13

Evaluate when a = 15:
2(a - 5) + 2

• 22
• 27
• 14
• 7

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

• x + 12
• 12x
• x - 12

Evaluate 7 + j if     j = -2

• -14
• 14
• 5
• 9

Evaluate -2x + -3y if x = 10 and y = -6

• 18

• -38

• 12

• -2

Simplify the following:

-2 (3 + 8 ÷ 4)²

• -16

• 1.375

• 4

• -50

Simplify the following:

-8 + (15-3) ÷ 4

• -5

• 1

• -11

• 11

Simplify the following:

(2 + 7 - 1) ÷ 2²

• 16

• 2

• 72.25

• 8.75