Fractions of Sets: Subtracting & Counting Challenges

1. Sarah has 24 apples. She gives away 1/3 of them to her friends. How many apples does she have left?

• 20

• 12

• 18

• 16

2. A box contains 40 chocolates. If 1/4 of the chocolates are dark chocolate, how many dark chocolates are there?

• 10

• 15

• 5

• 20

3. Tom has 60 marbles. He loses 1/5 of them during a game. How many marbles does he have now?

• 48

• 50

• 40

• 55

4. In a classroom, there are 30 students. If 2/5 of them are girls, how many girls are in the classroom?

• 10

• 15

• 20

• 12

5. A pizza is cut into 8 slices. If 3/8 of the pizza is eaten, how many slices are left?

• 4 slices

• 6 slices

• 3 slices

• 5 slices

6. A farmer has 50 carrots. He sells 1/2 of them at the market. How many carrots does he have after the sale?

• 30

• 15

• 40

• 25

7. Lisa read 3/4 of her book, which has 32 pages. How many pages has she read?

• 16

• 24

• 20

• 28

8. A toy store has 80 toys. If 1/10 of the toys are stuffed animals, how many stuffed animals are there?

• 5

• 15

• 10

• 8

9. There are 45 books on a shelf. If 1/3 of them are fiction, how many fiction books are there?

• 15

• 25

• 20

• 10

10. A cake is divided into 12 equal pieces. If 5/12 of the cake is left, how many pieces are remaining?

• 6 pieces

• 4 pieces

• 3 pieces

• 5 pieces