Given the above image, what digit do the red dots represent?

Solving for the ones column in this addition equation will give you the value of the red dot. In this case, red+red+red = red OR red+red+red = 10+red. The first value gives us red = 0, but that would make the 3-digit number 000, which doesn't work as each color represents a different digit. Evaluating red+red+red = 10+red gives us the solution that red = 5. Plugging that into the original problem gives us the other values of blue = 1 and gray = 8.

Asked by Ben Jenkins · Last updated 3 years ago · 827 views · SOURCE