78 - (6 x 9) = 78 - 54 = 24
The smallest value Roman numeral using each symbol only once would be MCDXLIV = 1444
Try: (5-1) times (8-2) = 24
(9 - 1) x (7 - 4) = 8 x 3 = 24
998,000
6^(7-5) = 36
(9-5)*(7-1)
96 x 1/4 = 24
It is simply: 1*2*3*4 = 24
It is: (9-4-2) times 8 = 24
78 - (6 x 9) = 78 - 54 = 24
The smallest value Roman numeral using each symbol only once would be MCDXLIV = 1444
Try: (5-1) times (8-2) = 24
It is: (5+13)/6 times 8 = 24
It can be done by: (9-5) times 6 times 1 = 24
(9 - 1) x (7 - 4) = 8 x 3 = 24
998,000