First 5 Multiples Of 9, In mathematics, multiples refer to the result of multiplying a number by an integer. For example,, General, first-5-multiples-of-9, JPOSE
In mathematics, multiples refer to the result of multiplying a number by an integer. For example, the first five multiples of 9 are 9, 18, 27, 36, and 45. These numbers are obtained by multiplying 9 by each of the integers from 1 to 5.
The first multiple of 9 is 9 itself because any number multiplied by 1 is equal to itself. The second multiple is obtained by multiplying 9 by 2, which gives 18. The third multiple is 27, which is obtained by multiplying 9 by 3. The fourth multiple is 36, which is obtained by multiplying 9 by 4. The fifth multiple is 45, which is obtained by multiplying 9 by 5.
Multiples of 9 are important in mathematics because they follow a pattern. For example, all multiples of 9 have a digit sum that is a multiple of 9. This is because when you add the digits of a number that is a multiple of 9, the sum is always a multiple of 9. For example, the digit sum of 27 (which is a multiple of 9) is 2 + 7 = 9, which is itself a multiple of 9.
Multiples of 9 also have other interesting properties. For example, the last digit of any multiple of 9 is always 0 or 9. This is because when you multiply any number by 9, the last digit is always 0, and when you add 9 to a number whose last digit is 0, the last digit becomes 9.
In conclusion, the first five multiples of 9 are 9, 18, 27, 36, and 45. Multiples of 9 are important in mathematics and follow interesting patterns and properties. Understanding multiples is crucial for many mathematical concepts and applications.