A two bit multiplication calc
The red Displays show the Inputs to multiply. Last one shows Result
First step are AND Gates. There The first two bits get multiplied with the first bit of the second number's first bit, and then with the oder two AND Gates with the second bit of the second number. Since there are only 0's and 1's ther will also be only 0's and 1's. So in the example:
11 (= 3)
*10 (= 2)
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00 ( 0*10)
110 ( 1*11 Moved one digit)
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110 ( = 6 simple adition)
Nest step is Addition
The blue Displays show the Numbers for Addition
This is found in my Addition Basic cirquit