The tried-and-true method of repetition, repetition, repetition is highlighted here in these basic addition skill sheets. Good as a timed warm-up to increase speed and accuracy, this set of ten worksheets contains five basic (sums to 10) and five intermediate (sums to 20) worksheets with a variety of addition problems. Problems are presented in both forms (2 + 3 AND 3 + 2) in order to help students grasp the communicative property of addition. Don't feel like printing multiple copies for each