Percent of a Whole

The video tutorial explains how to calculate percentages of a whole using two examples: determining the number of left-handed students in a class and the number of games won by a basketball team. It emphasizes that 'of' means multiplication and demonstrates converting percentages to fractions for calculation. The tutorial concludes with a summary of the lesson on calculating parts of a whole.

If 30% of a class of 20 students are left-handed, how many students are left-handed?

• 4 students

• 5 students

• 6 students

• 7 students

What is the first step in calculating 30% of 20?

• Add 30 and 20

• Subtract 20 from 30

• Divide 30 by 20

• Convert 30% to a fraction

A basketball team won 85% of their 40 games. How many games did they win?

• 36 games

• 34 games

• 32 games

• 38 games

To find 85% of 40, what should you do first?

• Convert 85% to a fraction

• Add 85 and 40

• Subtract 40 from 85

• Divide 85 by 40

What is the main concept taught in this lesson?

• How to subtract percentages

• How to calculate a percentage of a whole

• How to divide percentages

• How to add percentages