New posts in Decimal Expansion

Subtraction with a negative result

Do there exist numbers normal in every base except for one?

Digit after decimal point of radicals

What is the smallest positive multiple of 450 whose digits are all zeroes and ones?

Are infinitesimals equal to zero?

How to find last two digits of $2^{2016}$

How can never ending decimal numbers represent finite lengths? e.g. $\pi$, $\sqrt{2}$

Factorial question: number of trailing zeroes in 125!

Why does an argument similiar to 0.999...=1 show 999...=-1?

Last $500$ digits of $2015!-1$