Finding Variables: Fun with Equations for Grade 6

Maria has x apples. If she buys 5 more apples, she will have 12 apples. How many apples did she start with?

• 10

• 7

• 8

• 6

A book costs $x. If you buy 3 books, you spend $45. What is the cost of one book?

• 20

• 25

• 10

• 15

Tom has y marbles. He gives 8 marbles to his friend and now has 15 marbles left. How many marbles did Tom have originally?

• 30

• 15

• 20

• 23

A rectangle has a length of 2x and a width of 5. If the perimeter is 28, what is the value of x?

• 5

• 6.5

• 3

• 4.5

Samantha is x years old. In 4 years, she will be 15 years old. How old is Samantha now?

• 12

• 14

• 11

• 10

A car travels at a speed of x miles per hour. If it takes 3 hours to reach a destination, how far is the destination?

• x miles

• 6x miles

• 3x miles

• 9x miles

The total cost of x notebooks is $20. If each notebook costs $4, how many notebooks did you buy?

• 8

• 5

• 6

• 4

A pizza has x slices. If you eat 3 slices, you have 5 slices left. How many slices were there originally?

• 6

• 4

• 10

• 8

The sum of x and 7 is equal to 20. What is the value of x?

• 13

• 10

• 5

• 15

A farmer has x chickens. If he buys 10 more chickens, he will have 50 chickens. How many chickens did he start with?

• 50

• 30

• 40

• 20