Understanding Percent Calculations with Desmos

This video tutorial demonstrates how to calculate the percent of a number using Desmos.com. It provides examples of finding 25% of 56, 6.25% of 1200, and 1.6% of 12 million. The tutorial guides users through the process of using the Desmos graphing calculator, including entering percentages and numbers without commas. The video concludes with a review of the calculated results.

What is the main purpose of this lesson?

• To find the percent of a number using Desmos

• To explore advanced mathematical concepts

• To learn how to use Desmos for graphing

• To understand basic arithmetic operations

Which key should you press to enter the percent symbol using a normal keyboard?

• Shift + 5

• Shift + 6

• Ctrl + 6

• Alt + 5

What is the result of 25% of 56?

• 15

• 14

• 13

• 12

How should you enter 1,200 in Desmos to calculate 6.25%?

• 12.00

• 1.200

• 1200

• 1,200

What is 6.25% of 1,200?

• 85

• 80

• 75

• 70

When entering large numbers like 12 million in Desmos, what should you avoid?

• Using underscores

• Using periods

• Using commas

• Using spaces

What is the result of 1.6% of 12 million?

• 196,000

• 194,000

• 192,000

• 190,000

Which of the following is NOT a result calculated in the lesson?

• 10% of 500 is 50

• 6.25% of 1,200 is 75

• 25% of 56 is 14

• 1.6% of 12 million is 192,000

What is the final step after calculating percentages in Desmos?

• Recalculate the percentages

• Record the answers

• Share the results

• Close the browser