Part of a Percent

This video tutorial explains the concept of percentages and ratios, introducing the double number line as a tool for solving percentage problems. It provides examples using cookies, toy cars, and pizza to illustrate how to calculate parts of a whole using percentages. The video encourages practice with a guided problem and concludes with a summary of the key points.

What does the term 'percent' mean?

• Per 10

• Per 100

• Per 1000

• Per 50

Which of the following is NOT a way to express a ratio?

• Using the word 'to'

• Using a colon

• Using a percentage

• Using a fraction

What is a double number line used for?

• To measure distances

• To calculate speed

• To draw graphs

• To compare two different scales

In the cookie example, what percentage of cookies are chocolate chip?

• 60%

• 30%

• 40%

• 50%

How many toy cars are blue if 40% of 20 cars are blue?

• 6

• 8

• 10

• 12

What is the first step in solving the pizza slice problem using a double number line?

• Label the top of the number line with 60% of cuts

• Label the top of the number line with total cuts

• Label the bottom of the number line with 60% of cuts

• Label the bottom of the number line with total cuts

How many cuts of pizza have pepperoni if 60% of 30 cuts have it?

• 20

• 18

• 15

• 12