Algebraic Expressions Big Ideas

Sarah received $55, for her birthday. She used some of that money to buy 3 shirts priced at m dollars each. How much money does Sarah have left?
Write your answer as an expression.

• 55 - 3m

• 3m + 55

• 55 + 3 + m

• 55m - 3

Tra'von earns $35 a day working after school at the supermarket. How much will he earn in d days?
Write your answer as an expression. 

• 35 + d

• 35d

• 35 - d

• d + 35

25 less than a number (n)
Write your answer as an expression.

• n + 25

• 25 - n

• n - 25

• 25/n

A pizza delivery driver earns $12 an hour and works h hours per day. He also spends $ 12 a day on gas. How much money will the driver earn in one day. 
Write your answer as an expression.

• 12h-12

• 12 + h + 12

• 12/h - 12

• 12h + 12

friends evenly divided up a 12 slice pizza. One of the friends, Harris, ate 1 fewer slice than he was given. How many slices of pizza did Harris eat?
Write your answer as an expression.

• 12/k -1 

• k - 1 + 12

• k/12 + 1

• 1 + 12 + k

b − 3 + 6 − 2b

• -b + 3

• 3b + 9

• b + 3

• -3b + 3

9 + 5r − 9r

• 4r + 9

• -4r - 9

• -4r + 9

• 5r

−8(−5b + 7) + 5b

• 45b − 56

• -35b + 7

• -45b + 56

• 10b - 1

−4p − (1 − 6 p)

• -10p

• 2p − 1

• -10p -1

• -2p - 4

−7(k − 8) + 2k

• -5k - 56

• -5k - 8

• 10k - 7

• −5k + 56