SAT Math Practice Question #27337 - SATify | SATify
#27337
digits
number theory
medium
120 sec
Let ♣(x) denote the sum of the digits of the positive integer x. For example, ♣(8)=8 and ♣(123)=1+2+3=6. For how many three-digit values of x is ♣(♣(x))=3?