1. Worked Examples for 3.3 Di Lesson

2. Example 1:
Calculate mentally.
a) % of 80

3. Example 1:
Calculate mentally.
b) % of 120

4. Example 1:
Calculate mentally.
c) % of 99

5. Example 1:
Calculate mentally.
d) % of 24

6. Example 1:
Calculate mentally.
e) % of 99

7. Example 2: In a recent test, 75 % of people surveyed said they preferred grape juice to apple juice. If 240 people were surveyed, how many picked grape juice?

8. Example 3: It is customary to leave a 10 % to 15 % tip at most restaurants, depending on the quality of service. What amount should the tip be for a $54 bill?

9. Example 4: Estimate using Percent
a) % of 803

10. Example 4: Estimate using Percent
b) % of 293