Subject: Math
Name: Tiffany
Who are you: Parent

My greatest digit is a 9, but less than 900. I'm one more than a multiple of 10 and the sum of my digits is 12. Who am I?

Hi Tiffany,

I think the problem should say

My greatest digit is a 9, but I'm less than 900. I'm one more than a multiple of 10 and the sum of my digits is 12. Who am I?

If you are less than 900 then the 9 can't be the leftmost digit (the hundreds digit). Either the tens digit or the units digit is 9.

How can you tell if a number is divisible by 10? What does a number look like if it is one more than a number which is divisible by 10?

Penny