In the number 52, there is only one "one." The digit 5 represents five tens, and the digit 2 represents two ones.
When you add tens to the tens digit and ones it goes ten more.
i am a two digit # my tens digit# is 3 times my ones digit #and the sum of my digit is 12 what am i
46 - (four tens is 40 and then the digit in the ones place is two more than the digit in the tens place. 4 + 2 = 6)
There is no simple formula for that; I suggest you look up the prime numbers in a table of prime numbers, analyzing each prime number in the range 10-99 whether it fulfills this specific criterion.
Three of them.
There are 45 of them.
The answer depends on what the tens digit is greater than, and what the ones digit does then.
4
28
373
When you add tens to the tens digit and ones it goes ten more.
19?
i am a two digit # my tens digit# is 3 times my ones digit #and the sum of my digit is 12 what am i
472.
421 and 842
40, 51, 62, 73, 84, and 95