Prep · Absolute value

1. 1.

   Evaluate |−2|.

   Answer. 2

   Absolute value is distance from 0, so |−2| = 2.

2. 2.

   Evaluate |4|.

   Answer. 4

   Absolute value is distance from 0, so |4| = 4.

3. 3.

   Evaluate |−9|.

   Answer. 9

   Absolute value is distance from 0, so |−9| = 9.

4. 4.

   Evaluate |−11|.

   Answer. 11

   Absolute value is distance from 0, so |−11| = 11.

5. 5.

   Evaluate |−9|. Then Sam needs 3 of that amount. What is the total they need?

   Answer. 27

   Absolute value is distance from 0, so |−9| = 9. Then multiply by 3: 27.

6. 6.

   Evaluate |−15|. Then Luis needs 2 of that amount. What is the total they need?

   Answer. 30

   Absolute value is distance from 0, so |−15| = 15. Then multiply by 2: 30.

7. 7.

   Evaluate |−10|. Then Elena needs 4 of that amount. What is the total they need?

   Answer. 40

   Absolute value is distance from 0, so |−10| = 10. Then multiply by 4: 40.

8. 8.

   Evaluate |12|. Then Malik needs 2 of that amount. What is the total they need?

   Answer. 24

   Absolute value is distance from 0, so |12| = 12. Then multiply by 2: 24.

9. 9.

   Evaluate |−3|. Then Luis needs 4 of that amount. What is the total they need?

   Answer. 12

   Absolute value is distance from 0, so |−3| = 3. Then multiply by 4: 12.

10. 10.

    Evaluate |−15|. Then Grace needs 2 of that amount. What is the total they need?

    Answer. 30

    Absolute value is distance from 0, so |−15| = 15. Then multiply by 2: 30.

11. 11.

    Think

    Nora tried this problem:
    Evaluate |−3|.
    Nora wrote 4. That is not correct. What is the right answer?

    Answer. 3

    Nora’s answer 4 is off. Absolute value is distance from 0, so |−3| = 3.

12. 12.

    Think

    Theo tried this problem:
    Evaluate |9|.
    Theo wrote 18. That is not correct. What is the right answer?

    Answer. 9

    Theo’s answer 18 is off. Absolute value is distance from 0, so |9| = 9.

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