Understanding Divisibility by Two

In this video, Mr. J explains the divisibility rule for two, which involves checking if a number's last digit is even (0, 2, 4, 6, or 8). He provides four examples to demonstrate how to determine if numbers are divisible by two. The video concludes with a summary of the rule and its application.

What is the main purpose of checking divisibility?

• To calculate the square root of a number

• To check if a number is prime

• To determine if a number can be divided without a remainder

• To find the largest number

Which of the following is NOT an even number?

• 0

• 8

• 5

• 2

What is the last digit of a number that makes it divisible by two?

• 1

• 4

• 5

• 3

If a number ends in 8, is it divisible by two?

• Yes, because 8 is a prime number

• No, because 8 is an odd number

• Yes, because 8 is an even number

• No, because 8 is not divisible by two

Which number is NOT divisible by two?

• 870550

• 598

• 6701

• 3102784

What is the last digit of 870550, and is it divisible by two?

• 0, and it is divisible by two

• 5, and it is not divisible by two

• 5, and it is divisible by two

• 0, and it is not divisible by two

How can you tell if 3102784 is divisible by two?

• It ends in 4, which is even

• It ends in 3, which is odd

• It ends in 7, which is prime

• It ends in 1, which is not divisible by two

What is the divisibility rule for two?

• A number is divisible by two if it is greater than 100

• A number is divisible by two if it ends in 1, 3, 5, 7, or 9

• A number is divisible by two if it ends in 0, 2, 4, 6, or 8

• A number is divisible by two if it is a prime number