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Learning Poster: Divisibility Rules | Mathematics for Class 6

The document Learning Poster: Divisibility Rules | Mathematics for Class 6 is a part of the Class 6 Course Mathematics for Class 6.
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FAQs on Learning Poster: Divisibility Rules - Mathematics for Class 6

1. What are the basic divisibility rules for numbers?
Ans. The basic divisibility rules are as follows: - A number is divisible by 2 if its last digit is even (0, 2, 4, 6, or 8). - A number is divisible by 3 if the sum of its digits is divisible by 3. - A number is divisible by 5 if it ends in 0 or 5. - A number is divisible by 10 if it ends in 0. - A number is divisible by 4 if the last two digits form a number that is divisible by 4.
2. How can I determine if a number is divisible by 6?
Ans. A number is divisible by 6 if it meets two conditions: it must be divisible by 2 and by 3. This means that the last digit must be even (for divisibility by 2), and the sum of its digits must be divisible by 3 (for divisibility by 3).
3. Why is it important to know divisibility rules?
Ans. Knowing divisibility rules is important because they help simplify mathematical calculations, particularly in factoring, finding common multiples, and solving problems that involve fractions. They also aid in quickly determining whether a number is prime or composite.
4. Can you provide examples of numbers that are divisible by 9?
Ans. A number is divisible by 9 if the sum of its digits is divisible by 9. For example, the number 81 is divisible by 9 because 8 + 1 = 9. Similarly, 729 is divisible by 9 since 7 + 2 + 9 = 18, which is also divisible by 9.
5. How can I apply divisibility rules in everyday situations?
Ans. Divisibility rules can be applied in everyday situations like budgeting, cooking measurements, or organizing items. For instance, if you want to divide a batch of cookies into equal groups, knowing divisibility rules can help you determine how many groups can be made without leftovers.
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