Question

‘Multiples of 9 have digits that add together to make a multiple of 9,
Is that ALWAYS, SOMETIMES or NEVER true? Circle your answer.
How can you prove this?

Answer 1

Answer:

Always

Step-by-step explanation:

Take a example "59"

The sum of digits = 5+9= 14.

14 is not divisible by 9, so 59 is not divisible by 9.

Check

59÷9= 6 Quotient, Remainder=5....

Another example

Take 72..

The sum of digits=7+2 =9

9 is divisible by 9...

Check

9÷9= 1, Remainder = 0

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