Prep · Percent as a rate per 100

1. 1.

   Elena scored 50% of the 80 points available. How many points is that?

   Answer. 40

   50% of 80 = 40.

2. 2.

   8 out of 50 students finished early. What percent is that?

   Answer. 16%

   850 = 16%.

3. 3.

   Jonah scored 50% of the 60 points available. How many points is that?

   Answer. 30

   50% of 60 = 30.

4. 4.

   8 out of 100 students finished early. What percent is that?

   Answer. 8%

   8100 = 8%.

5. 5.

   Ava scored 25% of the 120 points available. How many points is that? Then Grace needs 5 of that amount. What is the total they need?

   Answer. 150

   25% of 120 = 30. Then multiply by 5: 150.

6. 6.

   8 out of 40 students finished early. What percent is that? Write a complete answer — Nora will compare with a partner.

   Answer. 20%

   840 = 20%.

7. 7.

   Mei scored 15% of the 80 points available. How many points is that? Then Sam needs 3 of that amount. What is the total they need?

   Answer. 36

   15% of 80 = 12. Then multiply by 3: 36.

8. 8.

   18 out of 60 students finished early. What percent is that? Write a complete answer — Luis will compare with a partner.

   Answer. 30%

   1860 = 30%.

9. 9.

   Malik scored 15% of the 80 points available. How many points is that? Then Sam needs 3 of that amount. What is the total they need?

   Answer. 36

   15% of 80 = 12. Then multiply by 3: 36.

10. 10.

    8 out of 40 students finished early. What percent is that? Write a complete answer — Elena will compare with a partner.

    Answer. 20%

    840 = 20%.

11. 11.

    Think

    Owen tried this problem:
    Sam scored 20% of the 40 points available. How many points is that?
    Owen wrote 16. That is not correct. What is the right answer?

    Answer. 8

    Owen’s answer 16 is off. 20% of 40 = 8.

12. 12.

    Think

    Nora tried this problem:
    12 out of 100 students finished early. What percent is that?
    Nora wrote 24%. That is not correct. What is the right answer?

    Answer. 12%

    Nora’s answer 24% is off. 12100 = 12%.

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