Addition (usually signified by the plus symbol +) is one of the four basic operations of arithmetic, the other three being subtraction, multiplication and division. The addition of two whole numbers results in the total amount or *sum* of those values combined. The example in the adjacent picture shows a combination of three apples and two apples, making a total of five apples. This observation is equivalent to the mathematical expression “3 + 2 = 5” (i.e., “3 *add* 2 is equal to 5″). wikipedia

We use **regrouping** in **addition** when the sum of two digits in the place value column is greater than nine. Here’s how we **regroup** ones and tens to add 248 and 75. **Regrouping** is referred to as the “carrying forward” in **addition** and “borrowing” in subtraction problems.

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