Real-Life Inequalities: Solving Addition and Subtraction

1. Sarah has at least 15 apples. If she buys some more, how many apples does she have now? Write an inequality to represent this situation.

• x + y <= 15

• x - y >= 15

• x + y = 15

• x + y >= 15

2. Tom has 20 marbles. He gives away some marbles to his friend. If he has at least 10 marbles left, how many marbles did he give away? Write an inequality to represent this.

• He can give away no marbles at all.

• He can give away at most 10 marbles.

• He can give away exactly 15 marbles.

• He can give away at least 5 marbles.

3. A box can hold a maximum of 30 toys. If there are currently 12 toys in the box, how many more toys can be added? Write an inequality to show this.

• 15

• 25

• 10

• 18

4. Lisa read at least 5 books this month. If she plans to read 3 more books, how many books will she have read? Write an inequality to represent this.

• At least 10 books

• At least 8 books

• At least 6 books

• At least 7 books

5. A school needs at least 50 volunteers for an event. If they currently have 30 volunteers, how many more do they need? Write an inequality to represent this situation.

• 35

• 15

• 25

• 20

6. Mark has 45 stickers. He wants to keep at least 20 stickers for himself. How many stickers can he give away? Write an inequality to represent this.

• 25

• 40

• 15

• 30

7. A concert hall can seat a maximum of 200 people. If there are currently 150 tickets sold, how many more tickets can be sold? Write an inequality to show this.

• 25

• 75

• 100

• 50

8. Emma has at least 25 dollars. If she spends some money on a book, how much money does she have left? Write an inequality to represent this situation.

• x + y >= 25, where x > 0 and y < 0

• x + y <= 25, where x < 25 and y > 0

• x - y >= 0, where x >= 25 and y > 0

• x - y < 25, where x >= 0 and y >= 0

9. A farmer has 100 chickens. If he sells some and wants to keep at least 60, how many can he sell? Write an inequality to represent this.

• 70

• 50

• 20

• 40

10. A library has at least 500 books. If they receive a donation of 150 books, how many books will they have? Write an inequality to represent this situation.

• x + 150 <= 500

• x + 150 = 800

• x + 150 > 650

• x + 150 >= 650