Math and Logic Puzzles: Redux

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Puzzle A: (top left + top right) * (bottom left + bottom right); (3+2)*(2+4)=30; (6+3)*(5+1)=54; (3+1)*(8+2)=40.

Puzzle B; first square you multiply both numbers minus the green number: 6*3-3=15*2-15=16*1-1=5*4-5=15. Second square it's just a multiplication, result is 36.