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Direct linkHandley, Bill – Jossey-Bass, An Imprint of Wiley, 2007
This book is about playing with mathematics, teaching: (1) How to multiply and divide large numbers mentally; (2) Making addition and subtraction easy; (3) Tricks for understanding fractions and decimals; and (4) How to quickly check answers for each calculation. Described as a foolproof way to do multiplication, division, factoring estimating,…
Descriptors: Teaching Methods, Subtraction, Numbers, Mathematics
