What is rounding and when is an estimate good enough?
Close Enough Counts
What is rounding and when is an estimate good enough?

Numbers can be fussy little things. Sometimes you want $7.83, every penny pinned down. But other times? You just need the gist. That's where rounding comes in — it's the art of saying, "close enough," and meaning it.
Rounding is simple: you nudge a number to the nearest neat one. Think of a number line as a hill with a number sitting somewhere on the slope. Roll it down to whichever round number is closest. The number 23 rolls down to 20. The number 78 rolls up to 80. Easy.
