Calc 24

An intelt 24 calculator.Given any 4 numbers between 1-13, use +, -, *, / to calculate 24.For numbers: 8,2,3,7, (8-2)*(7-3), (8+7-3)*2, 8/(7/3-2), (2+7)*8/3 are 4 different solutions.The apps has more intelce: (8+7-3)*2 and (7+8-3)*2 are treated as same solution, also (8+7-3)*2 and 2*(8+7-3) are treated as same.Play Calc 24, do a brain exercises.