Any vector can be expressed as a sum of a number of other vectors. The vectors which are summed are called the components of the original vector. When you want to add and subtract two dimensional ...

Use visual models to practice adding and subtracting lengths of objects within 100. Warm up with a Mystery Math Mistake to find the mistake made in counting up on a number line to subtract. Use visual ...

Problem 4 is about using three lengths of rod to measure all sorts of lengths. Maths teacher Chris Smith can show you how things add up. The Maths Week Scotland Daily Challenges have been set by the ...