So, loved the concept, but...
As the perfectionist , precision, and math lover, that I am; it became vrey frustrating to figure out the order of the operations (meaning, what comes first, addition/subtraction or multiplication/division), to the point that i got to desmos online scientific calculator to try and find out so that I could choose the number i put correctly. But ffter many attempts, I lost my patience and faith in myself to figure out what the order of opertations the game uses. Cuz every time i thought i got it, i got a different spin than the one i expected, and that introduced a new modifier to the operation, making me have to retype the operation in the calculator, see the possible new outcomes, and test them.
I never seemd to get it, so although i loved the concept, it became a tiring experience quite quick. Maybe disclosing what will be the order of operations, would be beneficial to a better player experience. Good Luck, you have a very creative and fun ideas :D