you start at 20 and count back until you reach 1 (or zero). Each number is one less than the last. You can use number lines like the one below to help you learn how to count on and count back.

On the overhead projector or chalkboard, display a large number line and demonstrate with a ... Move on to the next lesson, Exploring Equal Sets. 1. What numbers did you land on when you hopped by 5? ...

This positive and negative number line printable PDF is perfect for a wide range of number line activities. It’s ideal for supporting key mathematical concepts in the classroom. With options ranging ...