Absolut Lactam December 21, 2011 at 12:18 pm The answer to the first one is 9. Multiply the centre number with the lower right number, and subtract the other two numbers. The answer for the first two triangles is 11.
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The answer to the first one is 9.
Multiply the centre number with the lower right number, and subtract the other two numbers. The answer for the first two triangles is 11.