Great book, Absolute worth for children in studying
My son is going to participate selective school test in March 2014. I believe he will need a lot of practice before he go to the test. I myself is a math tutor in Taiwan and I can see Excel books are very well organized and suitable for my child in every aspect. His sister used excel books before and had successfully enrolled in the selective school few years ago. With the purchase value, we are very happy we can find the book here in ebay.