Divisibility Rule of 22

The divisibility rule for 22 is a method by which we can find out if a number is divisible by 22 or not without using the division method. Check whether 440 is divisible by 22 with the divisibility rule.

Step 1: Check if the number is divisible by 2. If the last digit is even, the number is divisible by 2. In 440, the last digit is 0, which is even.

Step 2: Check if the number is divisible by 11. Subtract the sum of the digits in odd positions from the sum of the digits in even positions. For 440, (4 + 0) - 4 = 0.

Step 3: Since 0 is divisible by 11, 440 is divisible by 11.

Step 4: Since 440 is divisible by both 2 and 11, it is divisible by 22.

Learning the divisibility rule will help kids master division. Let’s learn a few tips and tricks for the divisibility rule of 22.

• Know the multiples of 22: Memorize the multiples of 22 (22, 44, 66, 88, 110, etc.) to quickly check divisibility.

• Check divisibility by 2 and 11: A number divisible by 22 must be divisible by both 2 and 11.

• Use subtraction for 11: If the result from subtraction for the divisibility rule of 11 is 0 or a multiple of 11, the number is divisible by 11.

• Use the division method to verify: Students can use the division method as a way to verify and cross-check their results. This will help them to verify and also learn.

• Divisibility rule: The set of rules used to find out whether a number is divisible by another number or not. For example, a number is divisible by 2 if the number ends with an even digit.

• Multiples: Multiples are the results we get after multiplying a number by an integer. For example, multiples of 22 are 22, 44, 66, 88, etc.

• Integers: Integers are numbers that include all the whole numbers, negative numbers, and zero.

• Subtraction: Subtraction is a process of finding out the difference between two numbers by reducing one number from another.

• Even number: An even number is a number that is divisible by 2 with no remainder.