Divisibility Rule of 320

The divisibility rule for 320 is a method by which we can find out if a number is divisible by 320 without using the division method. Check whether 6400 is divisible by 320 with the divisibility rule.

Step 1: A number is divisible by 320 if it is divisible by both 32 and 10. First, check the divisibility by 10; the number should end in 0 to be divisible by 10. Here, 6400 ends with 0.

Step 2: Now, check divisibility by 32. Take the last five digits (since 320 has two trailing zeros, we take five digits to check for 32), which is 06400 in this case. Divide 6400 by 32, and if the result is an integer, then the number is divisible by 32. 6400 ÷ 32 = 200.

Step 3: Since 6400 is divisible by both 10 and 32, it is divisible by 320.

Learning the divisibility rule can help kids master division. Let’s learn a few tips and tricks for the divisibility rule of 320.

• Know the multiples of 320: Memorize the multiples of 320 (320, 640, 960, 1280, etc.) to quickly check divisibility.

• Use the factorization method: Since 320 = 32 × 10, check divisibility by both 32 and 10 separately for ease.

• Familiarize with powers of 2: Since 32 is a power of 2 (2^5), ensure the number of trailing zeros or the last digits have enough factors of 2.

• 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 verify and also learn.

• Divisibility rule: The set of rules used to find out whether a number is divisible by another number or not.

• Multiple: A multiple of a number is the product of that number and an integer.

• Factorization: Breaking down a number into a product of other numbers or factors, such as 320 = 32 × 10.

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

• Remainder: The amount left over after division when one integer is divided by another.