Identifying Expressions

• equation

• inequality

• expression

• inequality

• expression

• equation

• expression

• inequality

• equation

Three times a number increased by nine

• 3h-9

• 3(h-9)

• 3(h+9)

• 3h+9

The product of 7 and j increased by 3.

• 3+7j

• 7j-3

• 7(j+3)

• 3j+7

Which expression matches: The sum of 6 and 5 doubled

• 2 x 6 + 5

• 2 x (6 + 5)

• 6 + (5 x 2)

four more than the number of books
Let b = number of books

• b + 4

• b - 4

What is the algebraic expression for                  "the sum of n and 9"?

• n - 9

• n + 9

• n/9

• 9n

take 10 away from s 

• 10 - s 

• s + 10

• s - 10

• s/10

The sum of 6 and x

• x + 6

• 6/x

• x + 4

• 6x