Instead of adding three blocks or adding three pictures like some people might like to do, we're going to jump along our number line. It's a bit of fun. You can watch me as I jump up three numbers.

Adding using a number line. Sometimes when you are adding a 1-digit number to a 3-digit number you have to bridge a ten. Bridging a 10 just means crossing over to the next ten.

In this KS1 Maths article you'll learn what number lines are and how to add and subtract using them. We also have KS1 Maths videos, a quiz and lots of examples.

Teaching in Room 9. Open Number Lines 2 | 2nd Grade Math. Special | 28m 38s Video has Closed Captions | CC. Addition & subtraction strategies to solve two-digit equations using an open number line.