Divisibility Rules and Concepts

The video tutorial covers the criteria for divisibility by numbers 2, 3, 5, 6, 9, 10, 100, and 1000. It explains how to determine if a number is divisible by these numbers using simple rules, such as checking the last digit or summing the digits. The tutorial provides examples to illustrate each rule, helping learners understand and apply these divisibility criteria effectively.

Which of the following numbers is divisible by 2?

• 135

• 468

• 246

• 357

A number is divisible by 2 if it ends in which of the following digits?

• 1, 3, 5, 7

• 0, 2, 4, 6

• 0, 2, 4, 6, 8

• 2, 4, 6, 8

What is the rule for a number to be divisible by 3?

• The number must be even

• The number must end in 3

• The sum of its digits must be divisible by 3

• The number must be a multiple of 3

Which of the following numbers is divisible by 3?

• 123

• 125

• 126

• 124

A number is divisible by 5 if it ends in which of the following digits?

• 2 or 7

• 1 or 6

• 3 or 8

• 0 or 5

For a number to be divisible by 6, it must be divisible by which two numbers?

• 4 and 5

• 3 and 4

• 2 and 3

• 5 and 6

What is the rule for a number to be divisible by 9?

• The number must be a multiple of 9

• The sum of its digits must be divisible by 9

• The number must be even

• The number must end in 9

Which of the following numbers is divisible by 9?

• 82

• 81

• 84

• 83

A number is divisible by 10 if it ends in which digit?

• 3

• 1

• 0

• 2

A number is divisible by 1000 if it ends in how many zeros?

• 4

• 1

• 2

• 3