LEGO Duplo Number Line for Addition and Subtraction - In The Playroom

LEGO Duplo Number Line for Addition and Subtraction - In The Playroom

Original article and pictures take http://intheplayroom.co.uk/2016/01/14/lego-duplo-number-line/?utm_content=bufferee64c&utm_medium=social&utm_source=pinterest.com&utm_campaign=buffer site