GCF and LCM Practice Challenge

What is the main goal of today's lesson?

• To solve algebraic equations

• To learn about fractions

• To find the greatest common factor and least common multiple of two whole numbers

• To practice addition and subtraction

Which method is typically used to list factors?

• Skip counting

• Rainbow method

• Prime factorization

• Division method

Tags

CCSS.4.OA.B.4

What is the greatest common factor of 45 and 75?

• 5

• 15

• 45

• 75

Which of the following is a factor of 75?

• 6

• 5

• 4

• 2

Tags

CCSS.4.OA.B.4

What is the greatest common factor of 20 and 30?

• 5

• 10

• 15

• 20

What is the least common multiple of 8 and 14?

• 32

• 56

• 24

• 48

Which of the following is a multiple of 14?

• 16

• 28

• 32

• 40

Tags

CCSS.4.OA.B.4

What is the least common multiple of 8 and 12?

• 40

• 32

• 16

• 24

What is the least common multiple of 4 and 14?

• 28

• 14

• 42

• 56

What is required to complete today's assignment?

• None of the above

• Only solving the examples

• Only practicing on IXL

• Both solving the examples and practicing on IXL

Tags

CCSS.6.NS.B.3