無敵計算機秘芨 II

[godhanderinhk]

only for checking your ans...........

[999716]

Full of bugs

[socratescafe2004]

If the student is smart enough to memorize all these steps, then surely he/she can solve the question by using substitution method. Sigh.....

[hpmv]

admirable patience... yet too much for the calculator... it's like writing assembly code

[newtoniantiger]

You don't need a calculator to solve this. I can do this on paper.