View Answer & Explanation
In each circle, the lower number equals the product of the top two numbers, subtracting 3 for the left hand circle, 4 for the middle, and 5 for the right hand circle.
In each diamond, add the left and right hand numbers together, and subtract this sum from the top number to give the value at the bottom.
In each row of the diagram, the central value equals the sum of the differences between the left hand pair of numbers and the right hand pair of numbers.
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