Multiplication

2 - Remember that the answer will always be an even number. If your answer isn't even, then you need to try it again.
5 - The answer will always end in a 0 or a 5
10 - You just have to put a zero behind the other number. With 100 put two zeros.
11 - When multiplying 11 by numbers less than 10, you can just write the number twice for the answer. For example, 5 x 11 = 55, 8 x11 = 88

Fun Trick when Multiplying Numbers by 9
(This works when multiplying numbers up to 10 by the number 9.)

1) Hold your hands out in front of you with your fingers straight

2) Now, for whatever number you are multiplying 9 by, lower that finger. For example, if it is 9 x 4, lower the fourth finger from the right.

3) Now look at your fingers. If it was 9 x 4, you have three fingers still up to the right of the finger you lowered and six fingers on the left. This is actually the answer! 9 x 4 = 36.

4) Try this for other numbers and see that it works. It even works for 1 and 10 because if it's 1x9 you have 09, which is the same as 9. If your last finger is down for 9 x 10 you have 9 and 0 fingers up. That's 90!

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Multiplication

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When Multiplying by the number....

Fun Trick when Multiplying Numbers by 9 (This works when multiplying numbers up to 10 by the number 9.)

Fun Trick when Multiplying Numbers by 9
(This works when multiplying numbers up to 10 by the number 9.)