Throw out the calculator!
Lightning addition is a fun and simple method which allows math students to add columns of numbers that involve regrouping.The method can also be used when adding just two or a few addends. An original narrative story accompanies the method and helps guide students through the process.
This classroom tested product created by a National Board Certified Teacher with over 20 years classroom experience is very popular with students as they find this method to be fun rather than "work".
Watch your students start adding as fast as lightning!