Peter Chan
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看了会上瘾的动图,不得不佩服前人的智慧!

看了会上瘾的动图,不得不佩服前人的智慧!

看了会上瘾的动图,不得不佩服前人的智慧!

看了会上瘾的动图,不得不佩服前人的智慧!

看了会上瘾的动图,不得不佩服前人的智慧!

看了会上瘾的动图,不得不佩服前人的智慧!

NIC: Skilled Nursing Occupancy Falls to New Low - Senior Housing News

NIC: Skilled Nursing Occupancy Falls to New Low - Senior Housing News

www.google.ca _ chrome newtab?rlz=1C5CHFA_enCA505CA505&espv=2&ie=UTF-8

www.google.ca _ chrome newtab?rlz=1C5CHFA_enCA505CA505&espv=2&ie=UTF-8

You weren’t bad at maths — you just weren’t looking at it the right way

Let this grid speak to you. Explore the patterns. Sink into the depths of multiplication, and discover the starring role primes play.

Mental representations in mathematics

Interesting multiplication grid - to scale. The article links to all sorts of patterns in multiplication.