Math facts should be taught one strategy at a time. With this program, kids learn to understand subtraction, not memorize it!
There are three levels of practice problems for each strategy. The first level includes the single-digit facts that students should eventually “know from memory”. The second level requires them to use mental strategies to subtract within 20. The highest level challenges students to use strategies to subtract within 100. It's all the same strategy but each child can work at their own level. Everyone succeeds!
You can use these worksheets together with the other components of the MATH FACT COMPETITION or alone. It's up to you.
Teachers love how easy they are to use. Students love the challenge!