estimates, approximations, guesstimates, ball figures, rough estimates, rough guesses, rough figures, rough approximations, educated guesses, back-of-the-envelope calculations, rule-of-thumb estimates... [more]
estimates, approximations, guesstimates, ball figures, rough estimates, rough guesses, rough figures, rough approximations, educated guesses, back-of-the-envelope calculations, rule-of-thumb estimates... [more]