Review Expressions

Which is GREATER?
2⁷ or 7²

• 2⁷

• 7²

• Neither, they are equal

Which algebraic expression best represents the following verbal expression?
 
9 times a number minus 2

• 2 - 9n

• 9  - 2n

• 2n - 9

• 9n - 2

Which algebraic expression best represents the following verbal expression?
 
half a number x plus 4

• 2x + 4

• x + 4(½)

• ½x + 4 

• x + ½ + 4

Use the Distributive Property to write an expression equivalent to:

9(x + 7)

• 9x + 7

• 9x + 63

• 72x

• x + 63

Let B represent Bobby’s age. What expression shows "twice as old as Bobby"?

• B + 2

• 2B

• 2 + B

• 2(B + 2)

“difference of 8 and 5 divided by three”

• 8 ÷ (5 ÷ 3)

• 8 x 5 ÷ 3

• 8 - 5 ÷ 3

• (8 - 5) ÷ 3

You have $3 more than twice the amount of money (m) your friend has.

• 3m + 2

• 3(m + 2)

• 2m + 3

• 3 + 2 + m

The price of nails, n, is $1.29 per pound. The price of washers, w, is $0.79 per pound. The price of bolts, b, is $2.39 per pound.

Which expression represents the total price of the supplies?

• 1.29 + n + 0.79 + w + 2.39 + b

• 1.29n + 0.79w + 2.39b

• (1.29 + n)(0.79 + w)(2.39 + b)

• 4.47(n + w + b)

• 8

• 9

• 21

• -9

• 11p

• -10p + 11

• -5p + 6

• -5p - 6