Figuring Joy Numbers Devi Shakuntala

Figuring the Joy of Numbers (Paperback) This is a fun read so far - I've been able to apply some estimation techniques after just the first few pages. This is a fun way to get more efficient at figuring. Her own joy for numbers and mental number manipulation techniques comes shining through. I had to wait a long time for the book to come into stock... it was worth the wait.


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