L17 · Percent

1. 1.

   What is 20% of 200?

   Answer. 40

   20100 × 200 = 40.

2. 2.

   What is 20% of 40?

   Answer. 8

   20100 × 40 = 8.

3. 3.

   What is 75% of 40?

   Answer. 30

   75100 × 40 = 30.

4. 4.

   What is 25% of 200?

   Answer. 50

   25100 × 200 = 50.

5. 5.

   Owen got 40% of the 60 points on a quiz, then a bonus of 4 points. What is Owen’s total score?

   Answer. 28

   40% of 60 = 24. Then 24 + 4 = 28.

6. 6.

   Mei got 75% of the 40 points on a quiz, then a bonus of 4 points. What is Mei’s total score?

   Answer. 34

   75% of 40 = 30. Then 30 + 4 = 34.

7. 7.

   Nora got 40% of the 20 points on a quiz, then a bonus of 4 points. What is Nora’s total score?

   Answer. 12

   40% of 20 = 8. Then 8 + 4 = 12.

8. 8.

   Ava got 50% of the 80 points on a quiz, then a bonus of 4 points. What is Ava’s total score?

   Answer. 44

   50% of 80 = 40. Then 40 + 4 = 44.

9. 9.

   Luis got 10% of the 40 points on a quiz, then a bonus of 4 points. What is Luis’s total score?

   Answer. 8

   10% of 40 = 4. Then 4 + 4 = 8.

10. 10.

    Theo got 75% of the 100 points on a quiz, then a bonus of 4 points. What is Theo’s total score?

    Answer. 79

    75% of 100 = 75. Then 75 + 4 = 79.

11. 11.

    Think

    Jonah computed 20% of 20 as 20 × 20 = 400. What is the actual value?

    Answer. 4

    20% means 20100: 20100 × 20 = 4.

12. 12.

    Think

    Owen computed 25% of 200 as 25 × 200 = 5000. What is the actual value?

    Answer. 50

    25% means 25100: 25100 × 200 = 50.

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