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

Learn activities for second grade math to prepare for school. Teach your children 2nd grade math skills like addition and subtraction.

Watch this video to learn some mental addition and subtraction strategies. This section contains videos from our educational partners, hosted by the BBC.

But what if the two vectors are not in the same direction and they are not perpendicular? Well, here is the key to vector addition: Every vector can be broken into two vectors.

This Maths article shows how to add and subtract using the part-whole model.