"This Topsy and Tim activity book has shiny wipe-clean pages and a special pen to make practising first sums as easy as 1, 2, 3! Number bonds from 1-10 are introduced in the order that they are taught in schools and fun, colourful illustrations, simple sums and interesting activities help to reinforce first adding and subtracting skills. Help your child to fill in the answers, then they can wipe clean and practise again!"