> It's this: How do you mentally process simple addition/subtraction > facts? What actually happens in your brain to elicit 16 when you hear > 7+9? (for example)
Great thread.... I find I use a variety of strategies depending in large part on my "mood" and how much sleep I've gotten. Simple problems are essentially "seen" as the answer (no apparent digital manipulation real or imagined). More complex are dealt with semi-conventionally.. (E.g. 18 + 24.. 8 + 4 = 2 and the answer is 42.. No guessing a range for the answer or adding 2+1+1). Sometimes I use the approximate the answer and then adjust 18 + 24 < 44 and ends in 2. However, your question specifically asked about "hearing". I process things differently when my brain "hears" them as opposed to when my brain "sees" them. Aurally, I would store the first number and the process whatever the second is by a more conventional approach of adding digits from the right unless I chose to take the time to form a visual image of the entire problem. In other words, my math shortcuts tend to be visual (pattern recognition) and I can use them only after I form a visual image of the problem. Otherwise, I'm old school. Jim _______________________________________________ use-revolution mailing list [email protected] http://lists.runrev.com/mailman/listinfo/use-revolution
