Percentage Problems and Formulas

The video tutorial covers Go Math Module 8, Lesson 3, focusing on solving problems using two formulas: 'is over of equals percent over 100' and 'part over whole equals percent over 100'. The lesson includes examples of calculating percentages in different scenarios, such as students with pets and students in a band. The tutorial emphasizes understanding and applying these formulas to solve various problems, including fill-in-the-blank exercises. The session concludes with a preview of more complex problems to be covered in the next lesson.

Which formula is introduced as potentially easier for solving percentage problems?

• is over of equals percent over 100

• part over whole equals percent over 100

• whole over part equals percent over 100

• percent over whole equals part over 100

In the problem about students with pets, what is the total number of students in the class?

• 25

• 19

• 76

• 100

What percentage of students in Miss Yankee's class have a pet?

• 19%

• 100%

• 25%

• 76%

In the band problem, what percentage of the band do the trumpet players make up?

• 12%

• 24%

• 50%

• 100%

How many students are in the band if 12 students make up 24% of it?

• 24

• 48

• 36

• 50

In the fill-in-the-blank problem, what is 65% of 200?

• 200

• 150

• 100

• 130

Which formula is used for fill-in-the-blank problems involving 'is' and 'of'?

• part over whole equals percent over 100

• percent over whole equals part over 100

• whole over part equals percent over 100

• is over of equals percent over 100

In the final example, what is the percentage of 4 students out of 20?

• 10%

• 15%

• 25%

• 20%

What is the missing number in the problem: 4 students is blank percent of 20 students?

• 25

• 20

• 15

• 10

What will the next lesson focus on according to the wrap-up?

• Introduction to a new module

• More complex problems

• Final exam preparation

• Review of previous lessons