We are reviewing doubles addition as we begin our school year. I first laid out a set of doubles addition fact cards without answers and we worked with manipulatives to answer the cards. To help remember our facts, I have a little song we use. We say the little rap a few times and then I got out a dice to write our doubles addition. For instance if you roll a 1 you would do 1+1= 2 and so on and so forth.