1. Sally has 15 apples. She gives away 3 to her friend and eats 2. How many apples does she have left?

2. Billy has 24 baseball cards. He sells 8 cards and then buys 3 more. How many cards does he have now?

3. Emma has 10 stickers. She gives 4 to her sister and 2 to her brother. How many stickers does Emma have left?

4. There are 18 students in a class. If 5 students are absent, how many students are present?

5. A pizza has 8 slices. If 2 slices are eaten, how many slices are left?

6. Peter has 16 marbles. He gives 6 marbles to his friend and then receives 4 marbles as a gift. How many marbles does Peter have now?

7. Mia has 25 pencils. She gives 10 to her classmates and then receives 6 more. How many pencils does Mia have now?

8. There are 30 days in April. If 7 days have passed, how many days are left?

9. Lucy has 12 erasers. She gives 3 to her best friend and then receives 5 erasers as a birthday present. How many erasers does Lucy have now?

10. There are 20 cookies in a jar. If 8 cookies are eaten, how many cookies are left?