Understanding Factors and GCF

The video tutorial covers Lesson 16, focusing on common factors and the greatest common factor (GCF). It includes activities like analyzing figures made of squares and Diego's bake sale, where students learn to use factors to package items equally. The concept of GCF is explained, followed by practice problems to reinforce learning.

What is a common factor?

• A number that is greater than any other number.

• A number that is only divisible by itself and one.

• A number that is the product of two numbers.

• A number that divides two or more numbers without a remainder.

In Diego's bake sale, how many brownies are in each bag if he uses 6 bags?

• 8

• 6

• 10

• 12

What is a factor pair?

• Two numbers that add up to a given number.

• Two numbers that multiply to give a product.

• Two numbers that are both prime.

• Two numbers that are both even.

What is the greatest common factor (GCF) of 30 and 18?

• 9

• 6

• 12

• 3

How can the GCF be used in the bulletin board problem?

• To determine the number of colors needed.

• To find the largest square size that fits perfectly.

• To calculate the total area of the board.

• To decide the number of squares needed.

What is the GCF of 90 and 75?

• 20

• 15

• 10

• 5

Which transaction represents a negative value?

• Deposit of $650

• Withdrawal of $40

• Cashback of $10

• Credit of $20

How fast can a giraffe run in one hour?

• 16 miles

• 25 miles

• 40 miles

• 32 miles

What is the quotient of 1/7 divided by 1/8?

• 1/8

• 8/7

• 7/8

• 1/56

How many sixth graders are in each group if the GCF is 5?

• 25

• 18

• 20

• 15