Solving Percent Problems: Techniques and Strategies

The video tutorial covers the concept of percents, focusing on finding a percent of a quantity, solving problems involving finding the whole given a part and the percent, and using models to justify answers. It includes four main problems: determining the whole from a part and percent, calculating savings needed for a skateboard, finding part of a group using percent, and calculating 25% of a number. The video concludes with a summary and encouragement to continue learning.

What is the main topic of the video?

• Algebra

• Percents

• Decimals

• Fractions

If 5 is 20% of a value, what is that value?

• 25

• 30

• 10

• 20

What is the first step in solving the problem where 5 is 20% of a value?

• Draw a tape diagram

• Set up a proportion

• Multiply 5 by 20

• Divide 5 by 20

Jacob is saving money to buy a skateboard that costs $180. He has saved $72 so far. How much more does he need to save?

• $72

• $108

• $100

• $180

What is the total cost of the skateboard Jacob wants to buy?

• $108

• $180

• $72

• $100

Of the 50 girls on the soccer team, 20% also play on the travel team. How many girls play on both teams?

• 10

• 5

• 20

• 15

What is the whole part in the problem about the soccer team?

• 20%

• 50 girls

• 10 girls

• 100%

What is 25% of 80?

• 40

• 25

• 20

• 10

How do you find 25% of a number using a tape diagram?

• Divide the number by 4

• Multiply the number by 4

• Multiply the number by 2

• Divide the number by 2

What is the final step in solving the problem of finding 25% of 80?

• Divide 80 by 4

• Multiply 20 by 4

• Draw a tape diagram

• Set up a proportion