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

Addition What is 4 + 5? We can put 4 things in one of the parts and 5 in the other part. By combining the two parts in the whole circle we can find the sum of 4 + 5.

Let's explore addition and subtraction This collection contains curriculum-relevant videos, quizzes and games to help Year 6 and P7 Maths students with: mental addition strategies adding and ...

Fifth-graders will continue to deepen their understanding of addition, subtraction, multiplication, and division of fractions.

Under the common core, there are many ways to do subtraction—none of which involve borrowing and carrying.

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 ...