May 26 2013 Latest news:
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On a more serious note, the ability to do mental arithmetic and have a rough Idea what the answer should be before using a calculator can save a lot of embarrassment when performing scientific calculations. I've seen 8 'A' level physics students give 8 different answers to the same question using calculators without understanding the basic rules of mathematics. Good move Ms. Truss.
Thoreauwasright
Friday, November 09, 2012