How to use “tens of” and “hundreds of”?
Take this example:
Hundreds of pieces were used to create it.
What if the amount were something like 20 or 30? What would the equivalent sentence be that would sound natural?
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I confess, my first thought was "dozens". While "tens" is probably more accurate, it doesn't feel as comfortable to say (to me, anyway).
"Lots of pieces were used to create it."
While this may not be particularly ideal, nobody has added an ambiguous answer yet, which can be useful sometimes.