Column addition is a way of adding numbers together. It's helpful when you're adding two-digit or three-digit numbers together. When you do column addition, you lay out the numbers you are adding ...

Let's try tracking down as many number bonds as we can for the number 10. There you go! 6 and 4. Once added together they create the number 10! As do 5 and 5. Now let's have a go at finding some ...