Here are two tricks for learning the nines.
from 1 to 8, then starting at the bottom, number up in the right hand column from 1 to 8. These are the answers to the nines |
Listen to the song |
Download the midi file |
(Spoken command)
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We want to find the answer to 5x9. Think, "When I am counting by ones, what number comes before "5"? . The answer is "4". Follow the arrow up and ask yourself, "4 plus what number equals 9?" The answer is "5" . Now follow the arrow down and write 45 . |
2x9=? |
What number comes before 2? (1) |
1+?=9 (8) The answer is 18 . |
3x9=? |
What number comes before 3? (2) |
2+?=9 (7) The answer is 27. |
4x9=? |
What number comes before 4? (3) |
3+?=9 (6) The answer is 36. |
5x9=? |
What number comes before 5? (4) |
4+?=9 (5) The answer is 45. |
6x9=? |
What number comes before 6? (5) |
5+?=9 (4) The answer is 54. |
7x9=? |
What number comes before 7? (6) |
6+?=9 (3) The answer is 63. |
8x9=? |
What number comes before 8? (7) |
7+?=9 (2) The answer is 72. |
9x9=? |
What number comes before 9? (8) |
8+?=9 (1) The answer is 81. |