Great Estimations : If someone handed you a big bowl of jelly beans, would you be able to figure out how many were in it? You could count them, one by one - or you could estimate. Do you see more than five jelly beans? Less than a million? Those are both estimates, but they aren't very accurate. This book will show you how to train your eyes and your mind to make really great estimations. Jelly beans are just the beginning!
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