This uses a decimal to binary encoder. Then it takes the binary number to a eneabler/disabler that will take it to input a, or input b. The adder/subtractor has a lever that's labeled so that you can switch it off(subtract) or on(add). subtract is a-b. BTW the adder/subtractor is the stone on the bottom and the decimal to binary encoder/input is the snow.
The colourful bit in the middle is the multiplication. It uses the same "go to a or b" thing as the adder/subtractor, and all the operations do. But it works in a different way.
It takes the two inputs and puts them into a sort of "combination". It figures out which combination(s) it follows, takes the result and feeds it to the output. Notice that the result is 7 bit.
The one on the top is dividing. It works the exact sam way as the multiplying, so they look similiar. But instead the 7 bit result place value goes 8,4,2,1,1/2,1/4,1/8 instead of 64,32,16,8,4,2,
Input the first number on the snow(Note:if you're subtracting or dividng then do the first number on the equation). Then, flick the input changer lever on whatever operation you're doing. Then input you're second number. Look at the result and you're done!
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Griefed
1234charleslbr griefed it. Please rollback if possible before reviewing as HE BROKE IT.