Exploring Divisibility Rules Through Song

The video tutorial covers the basic rules of divisibility for numbers. It begins with an introduction to the concept of divisibility, explaining that a number is divisible by one if it is an old number. The tutorial then discusses the rules for divisibility by two, highlighting that even numbers are divisible by two. It continues with the rules for divisibility by three and four, providing examples and explanations. The video concludes with a summary of the key points discussed.

Which number is divisible by 1?

• Only odd numbers

• Only even numbers

• All numbers

• Prime numbers only

Tags

CCSS.4.OA.B.4

What is the rule for a number to be divisible by 2?

• It must be greater than 10

• It must be a prime number

• It must be an odd number

• It must end in an even digit

Tags

CCSS.4.OA.B.4

How can you check if a number is divisible by 3?

• Check if the number ends in 0

• Check if the number is even

• Sum the digits and see if the result is divisible by 3

• Check if the last digit is 3

Tags

CCSS.3.OA.D.9

What is the rule for a number to be divisible by 4?

• The last two digits form a number divisible by 4

• The number must be even

• The number must end in 4

• The number must be a multiple of 2

Tags

CCSS.4.OA.B.4

Which of the following is true about divisibility?

• A number divisible by 2 is always divisible by 4

• A number divisible by 4 is always divisible by 2

• A number divisible by 3 is always divisible by 6

• A number divisible by 1 is always divisible by 5

Tags

CCSS.4.OA.B.4