Finding LCM and GCF Using the Ladder/Cake Method

What is the primary purpose of the Cake or Ladder Method?

• To solve complex algebraic equations

• To find the greatest common factor (GCF) only

• To find both the GCF and LCM simultaneously

• To find the least common multiple (LCM) only

What are the two traditional methods reviewed for finding GCF and LCM?

• Listing factors and multiples

• Using prime factorization

• Using the Euclidean algorithm

• Using the distributive property

In the traditional method, what is the GCF of 30 and 12?

• 3

• 12

• 30

• 6

In the traditional method, what is the LCM of 30 and 12?

• 90

• 120

• 60

• 30

What is the first step in the Cake or Ladder Method?

• List all factors of the numbers

• Draw a Venn diagram

• List all multiples of the numbers

• Bring in a list of prime numbers

What is the GCF of 30 and 12 using the Cake or Ladder Method?

• 3

• 6

• 12

• 30

What is the LCM of 30 and 12 using the Cake or Ladder Method?

• 90

• 60

• 120

• 30

What is the GCF of 24 and 40 using the Cake or Ladder Method?

• 6

• 8

• 4

• 10

What is the LCM of 24 and 40 using the Cake or Ladder Method?

• 80

• 160

• 120

• 100

When using the Cake or Ladder Method with three numbers, what should you do if a factor does not divide all the numbers?

• Stop the process

• Restart with new numbers

• Use a different factor

• Indent the line and continue