# Number Line #3

- Author:
- David Cox

**Move Point A. What do you notice?**

**Prediction**If A is -5, what is B? If A is 2.3, what is B? If A is 237, what is B?

**Verbal Description**Describe how you can find B if you know what A is.

**Look for Number Patterns**Make a table for A and B and include at least five different pairs for A and B. What do you notice?

**Rule**Write a rule for finding B if you know A. Your rule should begin with

**"B =**..."