Mathematical Puzzles : What is -LRB- -RRB- + -LRB- -RRB- + -LRB- -RRB- = 30 using 1,3,5,7,9,11,13,15 ?
By definition 0 , 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 are all digits . Based on that , would 012 be a 3 digit number ?