Classify real numbers - counting/natural, whole, integer, rational, irrational. Include examples in the boxes along with the names. Use this worksheet as an introduction, a review, a pre-test, a post-test, and/or at a station. Answer Key is included. Can be used multiple times with different number examples. Also great if printed as a poster. Given students post its with numbers and have them put them in the correct categories once the categories have been labeled. Please be sure to rate & leave feedback for this product!