43
Add the digits together. The sum of the digits of 23 is 5.
it is 23 because 2+3 = 5
43
They also add up to a multiple of 9.
42
18
43
23 or 41
Add the digits together. The sum of the digits of 23 is 5.
23
Add the digits together. The sum of the digits of 23 is 5.
it is 23 because 2+3 = 5
43
There are a variety of three digits that add up to 25. Examples include 9, 8 and 8.
This is an easy one, if you know a little trick -> add up the digits ! 2 + 0 + 7 = 9. Is this divisible by 3 ? Yes ! then 207 is divisible by three. Divide it, you get 69. Add the digits = 15, also divisible by 3. Divide again, you get 23. So, 207 is divisible by 3 3 23.
They also add up to a multiple of 9.