L18 · Percent problems

1. 1.

   Malik scored 10% of the 60 points available. How many points is that?

   Answer. 6

   10% of 60 = 6.

2. 2.

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

   Answer. 30%

   1550 = 30%.

3. 3.

   Grace scored 50% of the 200 points available. How many points is that?

   Answer. 100

   50% of 200 = 100.

4. 4.

   18 out of 40 students finished early. What percent is that?

   Answer. 45%

   1840 = 45%.

5. 5.

   Jonah scored 10% of the 120 points available. How many points is that? Then Jonah needs 2 of that amount. What is the total they need?

   Answer. 24

   10% of 120 = 12. Then multiply by 2: 24.

6. 6.

   12 out of 75 students finished early. What percent is that? Write a complete answer — Priya will compare with a partner.

   Answer. 16%

   1275 = 16%.

7. 7.

   Malik scored 20% of the 200 points available. How many points is that? Then Nora needs 3 of that amount. What is the total they need?

   Answer. 120

   20% of 200 = 40. Then multiply by 3: 120.

8. 8.

   12 out of 50 students finished early. What percent is that? Write a complete answer — Sam will compare with a partner.

   Answer. 24%

   1250 = 24%.

9. 9.

   Ava scored 10% of the 120 points available. How many points is that? Then Ava needs 3 of that amount. What is the total they need?

   Answer. 36

   10% of 120 = 12. Then multiply by 3: 36.

10. 10.

    8 out of 75 students finished early. What percent is that? Write a complete answer — Owen will compare with a partner.

    Answer. 10.67%

    875 = 10.67%.

11. 11.

    Think

    Grace tried this problem:
    Malik scored 20% of the 80 points available. How many points is that?
    Grace wrote -16. That is not correct. What is the right answer?

    Answer. 16

    Grace’s answer -16 is off. 20% of 80 = 16.

12. 12.

    Think

    Grace tried this problem:
    18 out of 50 students finished early. What percent is that?
    Grace wrote 72%. That is not correct. What is the right answer?

    Answer. 36%

    Grace’s answer 72% is off. 1850 = 36%.

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