Focus On Velocity, Proportion & Rat (Kumon Focus Workbooks) Paperback – Illustrated, 1 Jun. 2012

Great book for working through with your child. Very clear examples and answers to all questions in the back in case your maths is as bad as my wife's.

I love all Kumon workbooks. My children take good interest in solving them and have improved their skill on maths quickly.

just as advertised.

Very good

Perfect for teaching purposes