12. Multiply by 9
Practice multiplication facts for 9. This is the first in the series of multiplication facts (or times table) for numbers up to 10. It is important that the kids know multiplication facts of all single digit numbers from memory at the end of this grade, as it forms the base for multi digit multiplication in the next grade.
Common Core Alignment
3.OA.7Fluently multiply and divide within 100, using strategies such as the relationship between multiplication and division (e.g., knowing that 8 × 5 = 40, one knows 40 ÷ 5 = 8) or properties of operations. By the end of Grade 3, know from memory all products of two one-digit numbers.