Quick Arithmetic: Thirty simple tricks of mental arithmetic
This booklet is a collection of simple and easily grasped tricks to speed up your mental arithmetic. If you want to master them you should realize that to be used fully they need to be approached conscientiously, not mechanically. But it pays to master them as they will enable you to do calculations in your head without error, as with written calculations.
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Quick Arithmetic: Thirty simple tricks of mental arithmetic
This booklet is a collection of simple and easily grasped tricks to speed up your mental arithmetic. If you want to master them you should realize that to be used fully they need to be approached conscientiously, not mechanically. But it pays to master them as they will enable you to do calculations in your head without error, as with written calculations.
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Quick Arithmetic: Thirty simple tricks of mental arithmetic
Quick Arithmetic: Thirty simple tricks of mental arithmetic
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Product Details
BN ID: | 2940149593781 |
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Publisher: | Prodinnova |
Publication date: | 03/06/2014 |
Sold by: | Barnes & Noble |
Format: | eBook |
File size: | 261 KB |
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