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Don't you have your square roots memorized? 31600 is approximately the square root of a billion. The U.S. population is about 316 million.
by SamReidHughes 12y ago
Don't you have your square roots memorized? 31600 is approximately the square root of a billion. The U.S. population is about 316 million.
- glenweyl 12y agoThat is the point of the software!