I am learning to add numbers together up to 5

In Maths we having been learning to add 2 digits together when the total is no more than 5.  We learnt that when we add 0 to a number we are adding nothing so the number stays the same.  We also learnt that when we add 1 to a number it is the same as saying the number that comes after.

"It was easy adding the numbers because I know how to do them."