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Divisibility by 10 - Playing with Numbers Video Lecture | Mathematics & Pedagogy - CTET & State TET

151 videos|108 docs|69 tests

FAQs on Divisibility by 10 - Playing with Numbers Video Lecture - Mathematics & Pedagogy - CTET & State TET

1. What is divisibility by 10?
Ans. Divisibility by 10 means that a number can be divided evenly by 10 without leaving a remainder. In other words, when a number is divisible by 10, the last digit of the number is 0.
2. How can I test if a number is divisible by 10?
Ans. To test if a number is divisible by 10, you simply need to check if the last digit of the number is 0. If it is, then the number is divisible by 10. If the last digit is not 0, then the number is not divisible by 10.
3. Why is divisibility by 10 important?
Ans. Divisibility by 10 is important in various mathematical operations and concepts. It is particularly useful in decimal place value systems, where the position of a digit determines its value. Divisibility by 10 also plays a role in simplifying calculations involving factors of 10, such as multiplication and division by powers of 10.
4. Can a number be divisible by 10 if it ends with other digits than 0?
Ans. No, a number cannot be divisible by 10 if it ends with digits other than 0. Divisibility by 10 requires the last digit to be 0. If a number ends with any other digit, it is not divisible by 10.
5. Are all multiples of 10 divisible by 10?
Ans. Yes, all multiples of 10 are divisible by 10. This is because multiples of 10 are obtained by multiplying 10 by a whole number, and the result is always a number that ends with 0. Therefore, all multiples of 10 are divisible by 10.
151 videos|108 docs|69 tests
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