Addition is one of the basic math skill. Work on different addition skills like addition of two numbers of one digit, of three numbers of 1 digit, with zero, of 2 digit number with a 1 digit number with/without carry, of 2 digit number with a 1 digit number with/without carry, of two numbers of 2 digit with/without carry, of three numbers of 2 digit with/without carry and much more.
The goal of kindergarten math curriculum is to prepare children for first grade math:
~ To count by rote at least to 20, but preferably a little beyond.
~ The concepts of equality, more, and less.
~ To count backwards from 10 to 0.
~ To recognize numbers.
~ To be able to write numbers.
~ To recognize basic shapes.
~ To understand up, down, under, near, on the side, etc. (basic directions).
~ To understand the concepts of addition and subtraction with small numbers.
~ Expose the student to two-digit numbers.