by Arnulf » Mon, 09Jan19 11:51
rle68, it's clear and we all understand that in the most cases the schooltime is far ago. But I think, Leonizer did not put in his game very difficult math challenges. The math rule, which the most of the gamers did not remember, is also to solve with logical thinking. 1) It is a very common strategy in science to proceed just as MDK did above: If you are not sure about a thing which has two options, just try both! 2) The calculation of 25+21x2 can be seen as follows: Instead of 25 we take A. Instead of 21 we take B. Then we can show the calculation as: A+2B . Now we take 2B, which is 42 and add it to A, which is 25. The result shows 67 and is easy to get. That all is logical human thinking and has nothing to do with complicated math rules!