What digit is divisible by 9?
A number is divisible by 9, if the sum is a multiple of 9 or if the sum of its digits is divisible by 9. Consider the following numbers which are divisible by 9, using the test of divisibility by 9: 99, 198, 171, 9990, 3411. Sum of the digits of 99 = 9 + 9 = 18, which is divisible by 9.
What is the rule for divisibility by 9?
A number expressed in decimal notation is divisible by 9 if and only if the sum of its digits is divisible by 9. That is: N=[a0a1a2…an]10=a0+a110+a2102+⋯+an10n is divisible by 9.
How do you test divisibility by 8?
The Rule for 8: If the last three digits of a whole number are divisible by 8, then the entire number is divisible by 8.
How do you find a missing number divisible by 9?
A number is divisible by 9 if sum of its digits is divisible by 9. Illustration: For example n = 9432 Sum of digits = 9 + 4 + 3 + 2 = 18 Since sum is divisible by 9, answer is Yes.
How do you know if a number is divisible by 9?
Here is an incredibly easy way to tell if any integer is divisible by 9, using the number 189 as an example. Use addition to add every single digit in your number together. (189 = 1 + 8 + 9 = 18) Add the numbers together again, if the sum is higher than 10.
What numbers can be divided by 9?
1) Add up the digits. 8 + 7 + 1 + 9 + 8 + 9 = 42. 2) Determine if 9 goes into 42 evenly. We know that 9 x 4 = 36 and 9 x 5 = 45. 3) Because 9 goes into 27 evenly, it also goes into 92,745 evenly. Therefore, 92,745 is divisible by 9.
What are the divisibility rules for the number 9?
Divisibility Rule of 9. The rule for divisibility by 9 is similar to divisibility rule for 3. That is, if the sum of digits of the number is divisible by 9, then the number itself is divisible by 9. Example: Consider 78532, as the sum of its digits (7+8+5+3+2) is 25, which is not divisible by 9, hence 78532 is not divisible by 9. Divisibility Rule of 10
What are the multiples of 9 [solved]?
because 9 x 0 = 0