An Introduction to Percentages

The video tutorial explains percentages as parts of 100 and demonstrates how to find missing percentages in various shapes. It includes four challenges where viewers learn to calculate missing percentages by subtracting known values from 100%. The tutorial encourages active participation by inviting viewers to solve a problem independently.

What does it mean when 50 parts out of 100 are shaded?

• 100%

• 75%

• 25%

• 50%

If 15% of a shape is blue, what percentage is not blue?

• 75%

• 90%

• 85%

• 15%

In a shape where 42% is blue, what is the percentage of the remaining part?

• 42%

• 58%

• 48%

• 52%

If a shape is divided into three parts with 25% blue and 42% green, what percentage is pink?

• 67%

• 42%

• 25%

• 33%

In a shape with 10% blue, 31% pink, and 24% green, what percentage is orange?

• 35%

• 25%

• 65%

• 45%