Step 1. Addition and Place Value
Arithmetic is to mathematics as spelling is to writing
Learning addition and place value at the same time is essential to understand regrouping in both addition and subtraction. If you are having problems regrouping it is likely because you are having problems with place value. Most students learn to add the ones first, then the tens and so on. There have been studies that show this method is difficult for students to understand . There are two alternate methods to overcome this difficulty