Children need lots of practice when learning important skills and this durable book allows them to repeat simple math problems again and again. This book introduces very simple addition and subtraction which will lay solid foundations for mathematics. Comes with a special wipe-clean pen which is really satisfying to write with, yet easy to wipe off the shiny pages. Age4 years and up Size8 1/2 x 10 7/8 Pages20 SeriesWipe-Clean Books AuthorLamb, Stacey
