Divisibility Rule of 180

The divisibility rule for 180 is a method to determine if a number is divisible by 180 without using the division method. 

Step 1: Check if the number is divisible by 2. This means the number should be even (its last digit should be 0, 2, 4, 6, or 8).

Step 2: Check if the number is divisible by 3. This means that the sum of its digits should be divisible by 3.

Step 3: Check if the number is divisible by 5. This means the last digit of the number should be 0 or 5.

Step 4: If the number passes all these checks (divisible by 2, 3, and 5), then it is divisible by 180.

Example: Check whether 540 is divisible by 180 using the divisibility rule.

For divisibility by 2: 540 ends in 0, which is even.
For divisibility by 3: The sum of the digits is 5 + 4 + 0 = 9, and 9 is divisible by 3.
For divisibility by 5: 540 ends in 0, which is divisible by 5.

Since 540 satisfies all the above conditions, it is divisible by 180.

Learning the divisibility rule will help kids master division. Let’s learn a few tips and tricks for the divisibility rule of 180.

• Know the combinations: Memorize the conditions for divisibility by 2, 3, and 5 to quickly check divisibility by 180.

• Repeat the process for large numbers: For large numbers, ensure each condition is checked, and if a number fails any one of the conditions, it is not divisible by 180.

• 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 determine whether a number is divisible by another number without performing division.

• Even number: A number that is divisible by 2.

• Multiple: The result of multiplying a number by an integer.

• Sum of digits: The sum obtained by adding all the digits in a number.

• Integer: A whole number; it can be positive, negative, or zero.