Create and Interpret Math Equations with Variables

1. Sarah has some apples. Let 'a' represent the number of apples she has. If she buys 5 more apples, how can we write an equation to show the total number of apples Sarah has now?

• total_apples = a / 5

• total_apples = a + 5

• total_apples = a * 5

• total_apples = a - 5

2. Tom has 't' toy cars. If he gives away 3 toy cars to his friend, how can we express the number of toy cars Tom has left?

• t + 3

• t - 1

• t - 5

• t - 3

3. A box contains 'b' balls. If 10 balls are added to the box, what equation can we create to represent the new total number of balls in the box?

• b / 10

• b * 10

• b + 10

• b - 10

4. Lisa reads 'r' pages of a book each day. If she reads for 4 days, how can we express the total number of pages she has read using 'r'?

• 4r

• r*4

• r+4

• 2r

5. There are 'd' dogs in a park. If 2 more dogs join them, how can we write an equation to show the new total number of dogs in the park?

• new total = d * 2

• new total = d - 2

• new total = d / 2

• new total = d + 2

6. A baker makes 'c' cookies. If he sells 12 cookies, how can we express the number of cookies he has left?

• c + 12

• c - 6

• 12 - c

• c - 12

7. Mark has 'm' marbles. If he finds 8 more marbles, what equation can we create to show the total number of marbles Mark has now?

• total = m * 8

• total = m - 8

• total = m + 8

• total = m / 8

8. A farmer has 'f' fields. If he plants 3 more fields, how can we express the total number of fields he has?

• f + 3

• f * 3

• f - 3

• f + 5

9. Jenny has 'j' stickers. If she gives away 5 stickers to her friends, how can we write an equation to show how many stickers she has left?

• j - 5

• 5 - j

• j - 10

• j + 5

10. A library has 'l' books. If 15 new books are added, how can we express the total number of books in the library now?

• l + 15

• l - 15

• l + 10

• l * 15