We have been encouraging the boys to calculate the answers to addition sums in two different ways.
1. By using their fingers / counters. Taking two set, combing them and counting them altogether.
2. By “counting on” on the 100 square. eg. 4+3 Find the 4 and jump on 3 squares.
Here are two games you can play to help reinforce these methods.
http://www.hbschool.com/activity/numberline1_5_04/
I hope you enjoy them!