I'm an idiot. I couldn't make it work in order, but I must have had something off. Menik's right, it's 1-10. horizontal hand is +, vertical is -, spread thingee is multiply, split rope is divide. Someone chekck me, but I think it works out that way:
2 + 4 = 6
8 - 1 = 7
5 x 2 = 10
9 / 3 = 3
IF...