This comprehensive book provides an enjoyable way for children to improve their understanding of place value, and with the help of a group of friendly animal characters they learn how to add and subtract 2-digit and 3-digit numbers in columns. The durable, wipe-clean pages allow children to practise calculations until they feel confident.Illustrations: Full colour throughoutWARNING! Not suitable for children under 36 months because of small parts. Choking hazard. Ink from pen may not be washable.
