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)

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. 
1 
2 
3 
4 
Ones Finger Power 
Count by TwosTwos Finger PowerTwos worksheet 
Count by ThreesThrees Finger PowerThrees worksheet 
Count by FoursFours Finger PowerFours worksheet 
5 
2x2 etc. 
5 
6 
Count by FivesFives Finger PowerFives worksheet 
Doable DoublesDoubles worksheet 
Fabulous Fives 
Super SixesSixes Finger Power 
9 
10 
7 & 8 
0 
NoNonsense NinesNines Finger PowerNines worksheet 
Add Zero (Tens)Tens worksheet 
?= 7x8Sevens Finger PowerEights Finger Power 
Empty Nests (Zeros) 