Solving Real-Life Two-Step Equations: Find the Unknowns

Maria has 3 times as many apples as John. If John has x apples and together they have 36 apples, how many apples does John have?

• 9

• 15

• 12

• 6

A book costs $15. If you buy 2 books and pay with a $50 bill, how much change will you receive?

• $20

• $25

• $30

• $15

Tom is 4 years older than his sister. If his sister is y years old and together they are 28 years old, how old is Tom?

• 18

• 20

• 16

• 12

A movie ticket costs $12. If you buy 5 tickets and pay with a $100 bill, how much money will you have left?

• $40

• $20

• $50

• $30

Lisa has twice as many marbles as Sam. If Sam has m marbles and together they have 30 marbles, how many marbles does Sam have?

• 10

• 5

• 15

• 20

A shirt costs $25. If you buy 3 shirts and pay with a $100 bill, how much change will you get back?

• $25

• $30

• $15

• $50

Jake is 5 years younger than his brother. If his brother is b years old and together they are 30 years old, how old is Jake?

• 20

• 10

• 15

• 12

A pizza costs $20. If you buy 4 pizzas and pay with a $100 bill, how much change will you receive?

• $20

• $60

• $80

• $40

Samantha has 10 more stickers than her friend. If her friend has s stickers and together they have 50 stickers, how many stickers does her friend have?

• 30

• 20

• 25

• 15

A concert ticket costs $45. If you buy 2 tickets and pay with a $100 bill, how much change will you have?

• $5

• $15

• $20

• $10