Solving Percent Problems with Bar Models

What is the main focus of this tutorial video?

• Understanding calculus

• Solving algebra problems

• Using bar models to solve percent problems

• Learning geometry

How many 1% are there in 100%?

• 10

• 50

• 100

• 200

What fraction of 100% is 25%?

• 1/2

• 1/3

• 1/4

• 1/5

What is the first step in solving 'What is 30% of 60' using a bar model?

• Multiply 60 by 0.3

• Guess the answer

• Draw a bar and mark 0% and 100%

• Divide 60 by 30

How do you find 10% of 60 using a bar model?

• Add 10 to 60

• Subtract 10 from 60

• Divide 60 by 10

• Multiply 60 by 10

What is 30% of 60?

• 12

• 18

• 24

• 30

In Example 2, what is 100% of the mathematics class?

• 35 students

• 30 students

• 25 students

• 20 students

How many students are car riders if 40% of 30 students are car riders?

• 14

• 12

• 16

• 10

In Example 3, what is the first step to find the total number of students in the band?

• Estimate where 40% is on the bar

• Guess the total number

• Multiply 28 by 2

• Divide 28 by 2

How many students are in the band if 40% of them play brass instruments and there are 28 brass players?

• 80

• 50

• 60

• 70