3 Ways To Learn The 9 S On The Multiplication Table

For example, if you want to figure out your multiplication chart up to 9 times 20, you will need to write out 20 numbers in the second column.

09, 18, 27, 36, 45, 54, 63, 72, 81, 90, 99, 108, 117, 126, 135. . .

You could continue these rows down and you will continue to get the correct answer.

In this example you will quickly be able to determine that 7 times 10 equals 70.

Other examples include: 9x1 turns into 10x1-1 = 9, 9x8 turns into 10x8-8 = 72, 9x27 = 10x27-27 = 243.

This method works well for figuring out the 9s multiplication table for 1 through 9.

Try this trick for any of the 9s multiplication problems between 1 and 10.

For example, for 9 x 4, focus only on 4. Reduce it by 1 for the the tens digit: 3. For the units digit, consider that 4 plus 6 makes 10, so the digit to use would be 6. Your answer is 36.