Greatest Common Factor Concepts

John and Ellie are preparing treat bags for a class party. John has 32 pieces of gum, and Ellie has 40 mints. The video teaches how to find the greatest common factor (GCF) of two numbers by listing factor pairs. It explains factors, factor pairs, and the steps to find the GCF. The GCF is used to determine the greatest number of equal treat bags they can make, which is eight. The video concludes with a visual explanation of how the GCF helps in organizing the treats into equal groups.

What is the main problem John and Ellie are trying to solve?

• Finding the total number of treats

• Determining the number of students in the class

• Creating equal treat bags for their class party

• Calculating the cost of treats

What is a factor pair?

• Two numbers that divide a product

• Two numbers that subtract to give a product

• Two numbers that multiply to give a product

• Two numbers that add up to a product

Which of the following is NOT a step in finding the greatest common factor?

• Listing factor pairs

• Finding the largest common factor

• Finding the smallest common factor

• Identifying common factors

How can the greatest common factor help in solving word problems?

• By showing different ways to add numbers

• By showing different ways to divide numbers

• By showing different ways to break numbers into equal groups

• By showing different ways to subtract numbers

What is the greatest common factor of 32 and 40?

• 4

• 10

• 6

• 8

How many treat bags can John and Ellie make using the greatest common factor?

• 4

• 10

• 6

• 8

If John has 32 pieces of gum, how many pieces will each treat bag contain?

• 3

• 4

• 5

• 2

If Ellie has 40 mints, how many mints will each treat bag contain?

• 6

• 7

• 5

• 4

What does the first column in the table represent?

• Number of treats

• Number of bags

• Number of factors

• Number of students

What is the significance of the greatest common factor in this lesson?

• It helps in multiplying numbers

• It helps in subtracting numbers

• It helps in creating equal groups

• It helps in adding numbers