3rd grade math
posted by Carol on .
52 is a 2digit number. The digits are 5 and 2.If you subtract the smaller digit from the larger digit you will get 3.what [2digit number] gives you the biggest difference when you subtract the digit.
my anwser is 45.

How about 91?

Or 90?

could you explain please ? thank you

9  0 = 9
9  1 = 8 
mine was 525=472=45
where did you get 90 I'm confused thank you 
I don't know my answer