Divisibility/Factors

Factors are

• even numbers

• odd numbers

• numbers that we multiply to get a product.

• an answer when you divide

Tags

CCSS.4.OA.B.4

A product is

• the answer when you add

• the answer when you multiply

• the answer when you divide

• an even number

A sum is

• the answer when you add.

• the answer when you multiply.

• the answer when you divide.

• an even number.

What is the divisibility rule for 5?

• The digits must add up to 10.
• The last digit needs to be a 5 or 0.
• The last digit can only be a 5.
• The sum of the digits need to be divisible by 5.

Is 234 divisible by 2?

• Yes

• No

A number is divisible by 10 if

• It is even

• It ends in 0

• It ends in 0 or 5

• The sum of the digits is a multiple of 10

Tags

CCSS.4.NBT.A.1

Which numbers are factors of 6?

• 6, 12, 18, 24

• 2, 3, 4, 5

• 1, 2, 3, 6

• 2, 4, 6, 8,

Name the factors of 10.

• 1, 2, 5, 10
• 1, 5, 10
• 1, 2, 3, 10
• 2, 5

Tags

CCSS.4.OA.B.4

Name the factors of 27.

• 1, 3, 9, 27
• 3, 9
• 1, 27
• 1, 2, 3, 27

What numbers are factors of 15?

• 5,10, 15, 20

• 15, 30, 45, 60

• 1, 3, 5, 15

• 1,3,5,7, 9,

Tags

CCSS.4.OA.B.4