Solving Integer Word Problems with Variables for 7th Graders

A store sells pencils for $2 each. If you buy x pencils, how much will you spend? Write an equation to represent the total cost.

• total cost = x + 2

• total cost = 2 - x

• total cost = 2 + x

• total cost = 2 * x

Maria has 15 apples. She gives away y apples to her friends. How many apples does she have left? Write an equation to find the remaining apples.

• 15 + y

• 15 * y

• 15 - y

• y - 15

A temperature dropped from 5 degrees to -3 degrees. What is the change in temperature? Write an equation to represent this change.

• 0 degrees

• 2 degrees

• -5 degrees

• -8 degrees

A car travels 60 miles in 1 hour. If it continues at the same speed for t hours, how far will it travel? Write an equation to express the total distance.

• Distance = 60 + t

• Distance = 60t^2

• Distance = 60t

• Distance = 60t + 1

In a game, you start with 50 points. If you lose z points, how many points do you have left? Write an equation to find your remaining points.

• 50 / z

• 50 - z

• 50 * z

• 50 + z

A bank account has an initial balance of $200. If you withdraw w dollars, what will your new balance be? Write an equation to represent this situation.

• new_balance = 200 + w

• new_balance = 200 * w

• new_balance = 200 / w

• new_balance = 200 - w

A mountain is 1,200 meters high. If you climb down d meters, how high are you from the ground? Write an equation to find your height after descending.

• d - 1200

• 1200 - 1200

• 1200 - d

• 1200 + d

A box contains 30 chocolates. If you eat e chocolates, how many are left in the box? Write an equation to determine the remaining chocolates.

• 30 - e

• e - 30

• 30 - e + 1

• 30 + e

A runner completes a race in 2 hours and runs at a speed of s miles per hour. How far did the runner go? Write an equation to find the distance.

• distance = 4s

• distance = 2s

• distance = s/2

• distance = 2s + 1

A plant grows 3 inches each week. If it has grown for w weeks, how tall is the plant now? Write an equation to express the height of the plant.

• height = 3 * w + 1

• height = 3 * w

• height = 3 + w

• height = w + 3