Whether you're trying to get your maths skills up to scratch for your own enjoyment, to pass an exam or to help your kids with their homework, Basic Maths For Dummies guides you through the tricks of the trade and helps you overcome the fear of maths.
The RRP is £15.99, but you can usually pick up a copy on Amazon for significantly less. I'll try not to think how much of the reduction comes out of his cut.
Basic Maths Practice Problems For Dummies does what it says on the tin: it gives you 2,000-odd practice problems (with answers and guidance) to work through to get your maths skills up to speed. The RRP is £12.99, but as usual, Amazon has it slightly cheaper.
If you're studying for a numeracy test, this book is for you. It takes you through the maths you need to know, tips on how to organise yourself and keep calm, and all kinds of tests and worked examples. You'll love it!
The RRP for Numeracy Tests For Dummies is £9.99, but you can normally get your copy for a little less at Amazon.