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F**S
Interesting book
This is comparable to the Tractenberg Speed systems of maths which is taught in Switzerland. Both books use different techniques, good for children and adults to have a choice.
S**E
Great book, but
Bought this as a Christmas present for my son to help him with his maths. Great little book, although at times I think it can be a bit heavy reading, so you may need to actually be a bit of a genius to get through the whole lot, rather than just thinking like a genius.
S**R
Very effective!
The techniques described in this book are highly effective. I would strongly recommend this book to anyone wanting to improve their mental math.
K**U
for kids and adults
a great book and now the wife won't give it back, do I need to say more
A**R
same as the other publication,
same as the other publication, bought this triple time as \i thought they were different books but same different covers or editions
A**T
Brilliant
Brilliant and well written. Love it.
T**D
Four Stars
As described.
K**Y
Five Stars
Very happy
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4 days ago
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