Students should already have their addition facts memorized! It was a skill that was taught in first grade. If your child is struggling with them, please take the time each evening to practice them. The Math program builds on the fact that they should already know the following:
plus 0 (0+0, 1+0, 2+0, 3+0, 4+0, 5+0, 6+0, 7+0, 8+0, 9+0)
plus 1 (0+1, 1+1, 2+1, 3+1, 4+1, 5+1, 6+1, 7+1, 8+1, 9+1)
plus 2 (0+2, 1+2, 2+2, 3+2, 4+2, 5+2, 6+2, 7+2, 8+2, 9+2)
doubles (0+0, 1+1, 2+2, 3+3, 4+4, 5+5, 6+6, 7+7, 8+8, 9+9)
Flashcard are great for this. We used index cards and made some to use in the classroom.