After I found a location for the hide, I sat down and did the manual brain work to solve the cards. The cache is located at:
N 39 59. 
W 076 29. 
Listed, but not in succession, are the blank versions of how I solved each card. You may find another method of solving. Reading each blank equation in provided order as Blue Red Green Black:
A = Green B = Black C = Green X = Blue Y = Red Z = Black
Match the equation to the correct card. When adding or multiplying, put the higher number first.
_ x ( _ - _ ) + _
( _ - ( _ - _ )) x _
_ x ( _ / _ + _ )
( _ - _ ) x ( _ + _ )
( _ - _ / _ ) x _
_ x _ - ( _ + _ )
