0. Links for Math Songs Subtraction Facts: https://www.youtube.com/watch?v=dA5Rxtc18_M&index=1&list=PLrqbT1cTkwJynfKau_GStU6Vb2b0z1vwk Doubles: https://www.youtube.com/watch?x-yt-cl=84924572&v=Ik_-OAgzD-8&list=PLrqbT1cTkwJynfKau_GStU6Vb2b0z1vwk&feature=player_detailpage&x-yt-ts=1422411861 https://www.youtube.com/watch?x-yt-cl=84924572&v=M9YQ4phTB0E&list=PLrqbT1cTkwJynfKau_GStU6Vb2b0z1vwk&feature=player_detailpage&x-yt-ts=1422411861