Four New Techniques of Addition and Subtraction of any Two Numbers

The addition and subtraction operations are some of the most basic mathematical arithmetic operations. The arithmetic operation in the form of addition and subtraction in integer is a basic arithmetic operation that elementary school students must master from an early stage. In fact, there are some students who have difficulty in adding up numbers with existing techniques, namely the saving technique for addition and borrowing technique for subtraction. The problem happened because students forgot that they had saved or borrowed numbers. Eventhough the technique was done correctly, the answer was still incorrect. Therefore, researchers developed several addition and subtraction techniques without saving and borrowing. There were four techniques that had been developed in this research namely multi-level, box, and stacking and table techniques. These new techniques had advantages in making students easier to solve addition and subtraction problems.