Least Common Multiple

​Greatest Common Factor
(GCF)

• Click the LINK in chat to join the Wayground Activity.

• Have your Materials ready, Math notebook and pencil.

SWBAT:
1. Find the greatest common factor of two numbers. 

Objectives:

6.NS.B.4 Find the greatest common factor of two whole numbers less than or equal to 100 and the least common multiple of two whole numbers less than or equal to 12. Use the distributive property to express a sum of two whole numbers 1–100 with a common factor as a multiple of a sum of two whole numbers with no common factor. For example, express 36 + 8 as 4(9 + 2)

 

Standard:

Open Ended

BELLWORK:

What are factors of 36

Open Ended

BELLWORK:

What are factors of 81

Open Ended

BELLWORK:

What are factors of 124

Multiple Choice

Which type of numbers have only 2 factors, 1 and itself?

• Prime

• Composite

• Even

• Odd

How do we find the GCF of two numbers?

​Finding the GCF:

1. Find the Prime Factors

2. Identify common factors

3. Multiply them to get the GCF

TRY THIS!

Multiple Choice

What is the greatest common factor for 25 and 40?

• 5

• 8

• 3

• 12

Multiple Choice

What is the greatest common factor of 38 and 22?

• 3

• 5

• 7

• 2

Multiple Choice

What is the greatest common factor of 24 and 64?

• 2

• 4

• 8

• 12

Multiple Choice

What is the greatest common factor of 28 and 72?

• 2

• 4

• 7

• 8

Multiple Choice

What is the greatest common factor among 9, 27 and 36?

• 9

• 18

• 12

• 24

EXIT TICKET

• Tuesday 3/31 EXIT TICKET (GCF)

• Tuesday 3/31 Homework (GCF)

​Least Common Multiple

• Click the LINK in chat to join the Wayground Activity.

• Have your Materials ready, Math notebook and pencil.

SWBAT:
1. Find the least common multiple of two numbers. 

Objectives:

6.NS.B.4 Find the greatest common factor of two whole numbers less than or equal to 100 and the least common multiple of two whole numbers less than or equal to 12. Use the distributive property to express a sum of two whole numbers 1–100 with a common factor as a multiple of a sum of two whole numbers with no common factor. For example, express 36 + 8 as 4(9 + 2)

 

Standard:

Multiple Choice

BELLWORK:

List the first five multiples of 7

• 7, 15, 21, 29, 35

• 7, 14, 23, 28, 35

• 7, 16, 21, 28, 35

• 7, 14, 21, 28, 35

Open Ended

List the first eight multiples of 6

​TRY THIS!

Multiple Choice

At the movie theater, they give out a free drink to every 75th customer and a free bag of popcorn to every 30th customer. Who is the first customer that is going to win both free items?

• 16th customer

• 150th customer

• 300th customer

• 180th customer

Multiple Choice

What is the LCM of 2 and 24?

• 2

• 8

• 24

• 48

Multiple Choice

What is the LCM of 5 & 20?

• 100

• 80

• 20

• 5

Multiple Choice

What is the Least Common Multiple

of 4 & 15?

• 30

• 45

• 60

• 75

Multiple Choice

What is the LCM of 12 and 14?

• 72

• 84

• 96

• 98

EXIT TICKET

• Monday 3/30 EXIT TICKET (Least Common Multiple)

• Monday 3/30 Homework (Least Common Multiple)