Students put all their addition and subtraction skills together to solve equations.

Match fun story problems with the correct addition or subtraction expression.

A Maths article on how to add and subtract numbers to 10.

The new theme is Addition and Subtraction, stories of humans becoming more and less and sometimes both with the help of technology.

The present paper describes the success, the methods (mental, informal written, standard algorithm) and the strategies of informal written arithmetic to be observed when 300 elementary students worked ...

This study examined Korean second and third graders' understanding of multidigit addition and subtraction and particularly their ability to explain the trading required when a column sum of the ...

Like our drive towards addition can become pathological (I’m thinking hoarders), do you think it is possible that people can overdo subtraction?