I gave my students iPads – then wished I could take them back

Re:I gave my students iPads – then wished I could take them ... by w8rbt on Monday December 07, 2015 @09:47AM (#10689758)

I do 9 x 14 in my head by breaking it down. I assume others do this too. Anyone should be able to break a problem down (pre or post tech generation) and do the small parts, then put them together to answer the bigger question.

In general, that's the essence of learning. If we stop teaching that, then we're all in trouble ;)

9 x 10 = 90

9 x 4 = 36

90 + 36 = 126

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Re:I gave my students iPads – then wished I could take them ... by gambiting on Monday December 07, 2015 @09:49AM (#10689771)

Ha, very interesting, I do something very similar, although for multiplication by 9 I would multiply by 10(since it requires no mental effort, you just add a zero at the end) then subtract one. So:

14 x 10 = 140

140 - 14 = 126

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