L9 · Division with fractions

1. 1.

   How many groups of 12 are in 5?

   Answer. 10

   5 ÷ 12 = 5 × 2 = 10 groups.

2. 2.

   How many groups of 14 are in 5?

   Answer. 20

   5 ÷ 14 = 5 × 4 = 20 groups.

3. 3.

   How many groups of 13 are in 7?

   Answer. 21

   7 ÷ 13 = 7 × 3 = 21 groups.

4. 4.

   How many groups of 13 are in 8?

   Answer. 24

   8 ÷ 13 = 8 × 3 = 24 groups.

5. 5.

   How many groups of 13 are in 5? Then Owen needs 4 of that amount. What is the total they need?

   Answer. 60

   5 ÷ 13 = 5 × 3 = 15 groups. Then multiply by 4: 60.

6. 6.

   How many groups of 14 are in 6? Then Owen needs 2 of that amount. What is the total they need?

   Answer. 48

   6 ÷ 14 = 6 × 4 = 24 groups. Then multiply by 2: 48.

7. 7.

   How many groups of 12 are in 7? Then Theo needs 5 of that amount. What is the total they need?

   Answer. 70

   7 ÷ 12 = 7 × 2 = 14 groups. Then multiply by 5: 70.

8. 8.

   How many groups of 12 are in 7? Then Malik needs 4 of that amount. What is the total they need?

   Answer. 56

   7 ÷ 12 = 7 × 2 = 14 groups. Then multiply by 4: 56.

9. 9.

   How many groups of 12 are in 8? Then Grace needs 2 of that amount. What is the total they need?

   Answer. 32

   8 ÷ 12 = 8 × 2 = 16 groups. Then multiply by 2: 32.

10. 10.

    How many groups of 12 are in 6? Then Elena needs 4 of that amount. What is the total they need?

    Answer. 48

    6 ÷ 12 = 6 × 2 = 12 groups. Then multiply by 4: 48.

11. 11.

    Think

    Jonah tried this problem:
    How many groups of 12 are in 8?
    Jonah wrote 32. That is not correct. What is the right answer?

    Answer. 16

    Jonah’s answer 32 is off. 8 ÷ 12 = 8 × 2 = 16 groups.

12. 12.

    Think

    Mei tried this problem:
    How many groups of 14 are in 7?
    Mei wrote 27. That is not correct. What is the right answer?

    Answer. 28

    Mei’s answer 27 is off. 7 ÷ 14 = 7 × 4 = 28 groups.

Original extra practice. Keys are computed from the items, not guessed.