What processes underlie children’s symbolic approximate arithmetic? We first considered whether children might have learned some symbolic addition facts and used their fact knowledge to solve the ...

Students put all of their addition and subtraction skills together to solve equations. In this lesson, students put all of their addition and subtraction skills together to solve equations. Julia ...

Hello, I'm Mr Firth, and I need your help today as we learn to add and subtract within ten. You can use lots of things to help you add and subtract. Counters, number lines and even your fingers. Let's ...