Solving Word Problems One-Step Equations Using Addition or Subtraction

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

How much did the tree grow?

• 1.75 feet
• 22 feet
• 112 feet
• 6 feet

Amy was given an amount of money, m, for a good grades on her report card. She spent $15.00 and now has $25.32. How much money did she get for good grades? Write an equation you could use to solve this problem. Use m as your variable.

• m-25.32=15
• m/25.32
• m-15=25.32
• 15m=25.32

How much money was Amy given for her good grades?

• $32.40
• $10.32
• $40.32
• $16.88

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

• 20x=53
• x-20=53
• x-53=20
• x+20=53

How many pounds did Steve collect?

• 33
• 73
• 2.65

Robin made $24.00 one weekend and some money, m, the next. She made a total of $65.00. How much money did Robin make the second weekend? Using m as your variable write an equation to solve this problem.

• 24m=65
• m/24=65
• m+24=65
• m-24=65

How much money did Robin make the second weekend. 

• $41.00
• $89.00
• $2.70

Nancy won a certain number of pieces of gum playing the bean bag toss at the county fair. At school she gave 21 away to her classmates. She only has 5 remaining. How many did she give away? Write an equation to solve this problem using g as your variable.

• g/21=5
• g-21=5
• g-5=21
• g+5=21

How much candy did Nancy win at the fair?

• 26
• 16
• 105