Finger Rule for 9's
This is the answer to 9x4
What is 36?
Using the Zero rule what is 10 x 80
What is 800?
This is the answer to 9 X 2...
What is 18?
Using the zero rule, 30x40 =....
What is 1200?
This is the answer to 9X 3 using dots..
What is 27?
Using the zero rule, 20x50 =....
What is 1000?
This is the answer to 9x6...
What is 54?
This is the answer to 9 x 9...
What is 81?