213 LearnersLast updated on May 26th, 2025
Divisibility Rule of 812
The divisibility rule is a method to determine whether a number is divisible by another number without using the division method. In real life, we can use divisibility rules for quick math, dividing things evenly, and sorting items. In this topic, we will learn about the divisibility rule of 812.
What is the Divisibility Rule of 812?
The divisibility rule for 812 is a technique to determine if a number is divisible by 812 without performing the division. Check whether 8120 is divisible by 812 using the divisibility rule.
Step 1: Divide the number by its factors. For 812, the factors are 2, 4, 101, and 203. Check divisibility by each factor:
8120 ends in 0, so it is divisible by 2.
The last two digits, 20, are divisible by 4.
For 101, sum the digits: 8+1+2+0=11, which is not divisible by 101.
For 203, apply the rule of 203: double the last digit (0×2=0) and subtract it from the rest (812–0=812), which is divisible by 203.
Since 8120 is not divisible by 101, it is not divisible by 812.
Tips and Tricks for Divisibility Rule of 812
Learning the divisibility rule helps kids master division. Here are a few tips and tricks for the divisibility rule of 812.
Know the factors of 812:
Memorize the factors of 812 (2, 4, 101, 203) to quickly check divisibility. If a number is divisible by all these factors, it is divisible by 812.
Use prime factorization:
812 = 2^2 × 203. If a number is divisible by 2 twice (or by 4) and by 203, it is divisible by 812.
Repeat the process for large numbers:
Keep repeating the divisibility test for each factor until you confirm divisibility by 812.
Use division method to verify:
Students can use the division method to verify and crosscheck their results, ensuring accuracy.
The divisibility rule of 812 helps us quickly check if a number is divisible by 812, but common mistakes can lead to incorrect calculations. Here, we will understand some common mistakes and how to avoid them.
Mistake 1
Not checking divisibility by all factors.
Ensure the number is divisible by all factors (2, 4, 101, 203) to confirm divisibility by 812.
Mistake 2
Forgetting to use prime factorization.
Remember that 812 = 2^2 × 203. Ensure the number is divisible by both 4 (2^2) and 203.
Mistake 3
Not repeating the process for large numbers.
Continue testing divisibility by each factor until the number is confirmed divisible by 812.
Mistake 4
Confusing the steps.
Practice regularly to avoid confusion. Familiarity with the process will prevent errors.
Mistake 5
Confusing the steps.
Students often confuse the steps or forget them. To avoid this error, students should practice regularly.
Divisibility Rule of 812 Examples
Problem 1
Can 8120 be divided evenly by 812?
Yes, 8120 is divisible by 812.
Explanation
To determine if 8120 is divisible by 812, we follow these steps:
1) Divide 8120 by 812: 8120 ÷ 812 = 10.
2) The result is an integer, so 8120 is divisible by 812.
Problem 2
Is 1624 divisible by 812?
Yes, 1624 is divisible by 812.
Explanation
To verify if 1624 is divisible by 812:
1) Divide 1624 by 812: 1624 ÷ 812 = 2.
2) The quotient is a whole number, confirming that 1624 is divisible by 812.
Problem 3
Check if 2436 can be divided by 812 without a remainder.
Yes, 2436 is divisible by 812.
Explanation
For 2436:
1) Divide 2436 by 812: 2436 ÷ 812 = 3.
2) Since the result is an integer, 2436 is divisible by 812.
Problem 4
Verify if 4056 is divisible by 812.
No, 4056 is not divisible by 812.
Explanation
To check if 4056 is divisible by 812:
1) Divide 4056 by 812: 4056 ÷ 812 ≈ 5.000 (not an integer).
2) The result is not a whole number, indicating that 4056 is not divisible by 812.
Problem 5
Determine if 9744 is divisible by 812.
Yes, 9744 is divisible by 812.
Explanation
For 9744:
1) Divide 9744 by 812: 9744 ÷ 812 = 12.
2) The quotient is a whole number, showing that 9744 is divisible by 812.
FAQs on Divisibility Rule of 812
1.What is the divisibility rule for 812?
2.How many numbers are there between 1 and 1000 that are divisible by 812?
3.Is 1624 divisible by 812?
4.What if a number is only divisible by some factors of 812?
5.Does the divisibility rule of 812 apply to all integers?
6.How can children in Vietnam use numbers in everyday life to understand Divisibility Rule of 812?
7.What are some fun ways kids in Vietnam can practice Divisibility Rule of 812 with numbers?
8.What role do numbers and Divisibility Rule of 812 play in helping children in Vietnam develop problem-solving skills?
9.How can families in Vietnam create number-rich environments to improve Divisibility Rule of 812 skills?
Important Glossaries for Divisibility Rule of 812
- Divisibility rule: A set of guidelines to determine if one number is divisible by another without division.
- Factors: Numbers that can be multiplied together to get another number. For example, factors of 812 are 2, 4, 101, and 203.
- Prime factorization: Breaking down a number into its prime number components. For example, 812 = 2^2 × 203.
- Subtraction: The process of finding the difference between two numbers by reducing one from the other.
- Multiples: Numbers obtained by multiplying a given number by integers. For example, multiples of 812 are 812, 1624, 2436, etc.
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About BrightChamps in Vietnam
Hiralee Lalitkumar Makwana
About the Author
Hiralee Lalitkumar Makwana has almost two years of teaching experience. She is a number ninja as she loves numbers. Her interest in numbers can be seen in the way she cracks math puzzles and hidden patterns.
Fun Fact
: She loves to read number jokes and games.
