The Archimedean property and density
No real exceeds every whole number, so $1/n$ can be made below any $\varepsilon$; and a rational lies in every gap.
About 20 minutes7 activities Paper packet
No real exceeds every whole number, so $1/n$ can be made below any $\varepsilon$; and a rational lies in every gap.
About 20 minutes7 activities Paper packet