Doing Simple Math in Your Head

Doing Simple Math in Your Head

by W. J. Howard
4.8 6

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Doing Simple Math in Your Head 4.8 out of 5 based on 0 ratings. 5 reviews.
Anonymous More than 1 year ago
Even though I was already advanced in math, this book provided me some awesome shortcuts. But if I think about it the concepts are pretty simple. In fact, I even knew some of the principles they taught me. This is a good buy.
Anonymous More than 1 year ago
?.
Anonymous More than 1 year ago
Thats Nico your talkin to bcuz i have his email and i can see his comments stuff
Anonymous More than 1 year ago
I am 15 in rp, 13 in rl. What about u?
Anonymous More than 1 year ago
How are u doin?