explain what it is adding or subtracting

addition is when theres is a certain nuumber of something example 5 apples and there are 5 oranges and you want something that makes 10 so count them together  5 + 5 = 10

subtraction is when there 10 apples and you eat one and then you count it and 9 so you took one away by eating it  10 - 1 = 9