Upside Down Birthday Cake Method

The video tutorial explains how to find the least common multiple (LCM) of 10 and 6 using the upside-down birthday cake method. It starts by dividing both numbers by 2, as they are even, resulting in 5 and 3. Since 5 and 3 are prime and not divisible by each other, the LCM is calculated by multiplying the outside and bottom numbers, resulting in 30. The tutorial also contrasts this method with finding the greatest common factor (GCF), where only outside numbers are used.

What method is used to find the least common multiple of 10 and 6 in the video?

• Division method

• Prime factorization method

• Subtraction method

• Upside down birthday cake method

What is the first step in the upside down birthday cake method for finding the LCM?

• Place the numbers inside the cake

• Subtract the numbers

• Multiply the numbers

• Add the numbers

Why can 10 and 6 be divided by 2 in the upside down birthday cake method?

• They are both even

• They are both odd

• They are both prime

• They are both multiples of 3

What are the results of dividing 10 and 6 by 2?

• 4 and 3

• 5 and 3

• 5 and 2

• 6 and 2

What is the significance of the number 2 in the upside down birthday cake method?

• It is the GCF

• It is the result of the multiplication

• It is the LCM

• It is the divisor for the first step

Why can't the division process continue after reaching 5 and 3?

• They are both even

• They are both odd

• They are both prime

• They are both multiples of 2

Which numbers are considered prime in the video?

• 5 and 3

• 5 and 2

• 2 and 3

• 10 and 6

What shape is formed by the outside and bottom numbers in the upside down birthday cake method?

• A square

• An L shape

• A triangle

• A circle

How is the LCM calculated using the upside down birthday cake method?

• By adding the numbers

• By multiplying the outside and bottom numbers

• By dividing the numbers

• By subtracting the numbers

What is the LCM of 10 and 6 as calculated in the video?

• 20

• 30

• 40

• 50