Simplifying Expressions & Solving Equations Challenge

1. Sarah has 3 apples and buys 2 more. If she gives away x apples, how many does she have left? Write the expression and simplify.

• 2 + x

• 5 - x

• 3 - x

• 5 + x

2. A box contains 5 red balls and 3 blue balls. If you add y green balls, how many balls are in the box? Write and simplify the expression.

• 8 + y

• 8 - y

• 3y

• 5 + y

3. Tom has 4 toy cars and receives 3 more from his friend. If he loses z cars, how many does he have now? Write the equation and solve for z.

• 10 - z

• 3 + z

• 4 - z

• 7 - z

4. In a garden, there are 6 sunflowers and 4 daisies. If you plant x more sunflowers, how many flowers are there in total? Write and simplify the expression.

• 10 - x

• 10 + x

• 8 + x

• 12 + x

5. A baker made 10 cookies and sold 4. If he bakes y more cookies, how many cookies does he have now? Write the equation and simplify.

• 4 + y

• 10 - y

• y - 4

• 6 + y

6. Lisa has 8 stickers and buys 5 more. If she gives away w stickers, how many does she have left? Write and simplify the expression.

• 8 - w

• 13 - w

• 5 + w

• 13 + w

7. A classroom has 12 chairs and 5 tables. If 3 chairs are broken, how many total pieces of furniture are there? Write the equation and solve.

• 15

• 17

• 20

• 10

8. Mark has 7 baseball cards and trades 2 for more. If he gains x cards, how many does he have now? Write the expression and simplify.

• 5 + x

• 7 + x

• 5 - x

• 6 + x

9. A library has 15 fiction books and 10 non-fiction books. If 5 books are checked out, how many books remain? Write and simplify the equation.

• 10

• 5

• 25

• 20

10. Emma has 9 marbles and finds 6 more. If she loses y marbles, how many does she have now? Write the expression and simplify.

• 10 - y

• 9 + y

• 15 + y

• 15 - y