Expressions/Equations Check

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

• 74
• 38
• 1000
• 9000

Evaluate 2r + 1      if   r = 3

• 6
• 5
• 7
• 8

Evaluate 4y  if       y = 3

• 7
• 12

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

• x + 12
• 12x
• x - 12

m plus the product of 6 and n 

• m + 6n
• m - 6 + n
• 6m + n
• m + 6 + n 

5 less than the product of 7 and s

• 7s - 5
• 5 - 7 + s
• 7(s - 5) 
• 5 - 7s

The product of seven and j..

• 7j
• j+3
• j-3
• j/3

Five times Mike's age, increased by nine

• 5(x+9)
• 9(5+x)
• 9x+5
• 5x+9

4 divided by the sum of a number and 12

• 4 / n + 12
• 4 / 12n
• 4 / (n + 12) 
• (4 / n) + 12

24 ÷ 4 x 2 =

• 21

• 6

• 3

• 12