The noun addition comes from the Old French word adition meaning that which is added. How many apples are there in all. Operator The symbol indicating a math operation is an operator for example.
So you can look at it in a different way.
The noun addition comes from the Old French word adition meaning that which is added. The noun addition comes from the Old French word adition meaning that which is added. Addition has a few other senses as a noun. The example in the adjacent image shows a combination of three apples and two apples making a total of five apples.