Divisibility Rules for Numbers 2 to 9

The video tutorial explains the concept of divisibility and provides rules for determining if numbers are divisible by 2, 3, 4, 5, 6, 8, and 9. It uses examples to illustrate each rule and concludes with a summary and a preview of future topics on divisibility by 7, 10, 11, and 13.

What was the initial problem discussed in the video?

• How to find the total bill amount

• How to calculate a tip

• How to split a bill among friends

• How to divide a bill by 2

Tags

CCSS.7.EE.B.3

Which of the following numbers is evenly divisible by 2?

• 23

• 37

• 15

• 48

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CCSS.2.OA.C.3

If the sum of a number's digits is divisible by 3, then the number itself is divisible by 3. Which of the following numbers is divisible by 3?

• 49

• 47

• 48

• 50

Tags

CCSS.3.OA.D.9

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

• The number ends in 4

• The sum of the digits is 4

• The last two digits are divisible by 4

• The last digit is 4

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CCSS.4.OA.B.4

Which of the following numbers is divisible by 5?

• 45

• 32

• 89

• 67

Tags

CCSS.4.OA.B.4

For a number to be divisible by 6, it must be even and the sum of its digits must be divisible by which number?

• 2

• 4

• 3

• 5

Tags

CCSS.3.OA.D.9

What is the sum of the digits of 23754?

• 24

• 23

• 22

• 21

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

To check if a number is divisible by 8, you need to look at which part of the number?

• The last digit

• The first digit

• The last three digits

• The first three digits

Tags

CCSS.3.OA.D.9

Which of the following numbers is divisible by 9?

• 73

• 72

• 74

• 75

Tags

CCSS.4.OA.B.4

Which divisibility rules were mentioned to be covered in future videos?

• 1, 2, 3, and 4

• 7, 10, 11, and 13

• 2, 3, 4, and 5

• 6, 7, 8, and 9

Tags

CCSS.5.OA.B.3