One-Step Equation Word Problems (Addition and Subtraction)

Andrew has already saved $55 toward the purchase of an IPOD. The IPOD costs $145. Which equation represents the amount Andrew needs to save to by the IPOD?

• 55 + x = 145

• 145x = 55

• 55 - x = 145

• 145 (55) = x

Saucy is cooking muffins. The recipe calls for 7 cups of sugar. She has already put in 2 cups. How many more cups does she need?

• 7 + 2 = x
• x = 2 + 7
• 2(7) = x
• 2 + x = 7

Breanna had some money, so she went to the mall and spent $35.00 on shoes. When she she got home she had $40.00 in her purse. which equation can be used to find the amount of money she started with?

• x - $35.00 = $40.00

• 40.00 - 35.00 = x

• 35.00x = 40.00

• 40.00x = 35.00

Working together, Kala and Tracy collected 53 pounds of aluminum cans for recycling. If Kala collected 20 pounds, find the number of pounds, x, that Tracy collected. Using x as your variable write an equation to solve.

• $20x=53$

• $x-20=53$
  

• $x-53=20$
  

• $x+20=53$
  

Which choice models this situation?

Chris has read 125 pages in a book. The book has a total of 262 pages. How many pages does she have left to read to finish the book?

• $p-125=262$

• $p+125=262$
  

• $125p=262$
  

• $\frac{p}{125}=262$
  

Which choice models this situation? Marcus needs to sell 25 tickets to a fundraiser by Friday. So far, he has sold 9 tickets. How many tickets does he still need to sell?

• $t-9=25$

• $t+9=25$
  

• $9t=25$
  

• $\frac{t}{9}=25$
  

Tyrell has already saved $62 to buy a new phone. How many more dollars must Tyrell save if the cost of the phone is $89? Let d be the number of dollars Tyrell must still save?

• 62 + d = 89

• 62d = 89

• d ÷ 89 = 62

• d - 62 = 89

In 2010, a tree was 8 feet tall. In 2011 the tree was 14 feet tall. Which equation would be used to find how many feet the tree grew?

• f + 8 = 14

• f - 8 = 14

• f/8 = 14

• 8f=14

x ÷ 2 = 12

• x = 24
• x = 6
• x = 20
• x = 10

Charlie has some candy. He shares ten pieces with Betsy and is left with 24 pieces. Which equation should I use to solve this problem?

• x +10 = 24

• x - 10 = 24

• 10x = 24

• x + 24 = 10