Tricks to Become a Master Multiplier!! Fast Facts Multiplication Tricks to Become a Master Multiplier!!

What is Multiplication? Repeated Addition 3 x 5 = 3 + 3 + 3 + 3 + 3

Commutative Property of Multiplication It doesn’t matter which number comes first. The answer will be the same. 4 x 3 = 3 x 4 =

Zeros Any number times 0 is 0. Repeated addition says: 4 x 0 = 0 + 0 + 0 + 0 =

Ones Any number times 1 is always itself! The Commutative Property says: 1 x 4 is the same as 4 x 1 Repeated addition says: 1 x 4 = 1 + 1 + 1 + 1 = 4 4 x 1 = 1 + 1 + 1 + 1 = 4

Good News! There are 100 facts to learn. You have already learned 36 of these!!

Better News! There are 64 more multiplication facts. Because of the commutative property, you won’t have to memorize 36 of these! If you memorize 3 x 4, you will already know the answer to 4 x 3. They are the same!!

We’re making progress!

Twos Any number times 2 is that number doubled! 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9 0 x 0 0 x 1 0 x 2 0 x 3 0 x 4 0 x 5 0 x 6 0 x 7 0 x 8 0 x 9 1 x 0 1 x 1 1 x 2 1 x 3 1 x 4 1 x 5 1 x 6 1 x 7 1 x 8 1 x 9 2 x 0 2 x 1 2 x 2 2 x 3 2 x 4 2 x 5 2 x 6 2 x 7 2 x 8 2 x 9 3 x 0 3 x 1 3 x 2 3 x 3 3 x 4 3 x 5 3 x 6 3 x 7 3 x 8 4 x 0 4 x 1 4 x 2 4 x 3 4 x 4 4 x 5 4 x 6 4 x 7 4 x 8 4 x 9 5 x 0 5 x 1 5 x 2 5 x 3 5 x 4 5 x 5 5 x 6 5 x 7 5 x 8 5 x 9 6 x 0 6 x 1 6 x 2 6 x 3 6 x 4 6 x 5 6 x 6 6 x 7 6 x 8 6 x 9 7 x 0 7 x 1 7 x 2 7 x 3 7 x 4 7 x 5 7 x 6 7 x 7 7 x 8 7 x 9 8 x 0 8 x 1 8 x 2 8 x 3 8 x 4 8 x 5 8 x 6 8 x 7 8 x 8 8 x 9 9 x 0 9 x 1 9 x 2 9 x 3 9 x 4 9 x 5 9 x 6 9 x 7 9 x 8 9 x 9

Fours The double-double! Double the number you are multiplying twice. 4 x 6 (double 6 twice) 6 doubled is 12, 12 doubled is 24. 1 2 3 4 5 6 7 8 9 0 x 0 0 x 1 0 x 2 0 x 3 0 x 4 0 x 5 0 x 6 0 x 7 0 x 8 0 x 9 1 x 0 1 x 1 1 x 2 1 x 3 1 x 4 1 x 5 1 x 6 1 x 7 1 x 8 1 x 9 2 x 0 2 x 1 2 x 2 2 x 3 2 x 4 2 x 5 2 x 6 2 x 7 2 x 8 2 x 9 3 x 0 3 x 1 3 x 2 3 x 3 3 x 4 3 x 5 3 x 6 3 x 7 3 x 8 4 x 0 4 x 1 4 x 2 4 x 3 4 x 4 4 x 5 4 x 6 4 x 7 4 x 8 4 x 9 5 x 0 5 x 1 5 x 2 5 x 3 5 x 4 5 x 5 5 x 6 5 x 7 5 x 8 5 x 9 6 x 0 6 x 1 6 x 2 6 x 3 6 x 4 6 x 5 6 x 6 6 x 7 6 x 8 6 x 9 7 x 0 7 x 1 7 x 2 7 x 3 7 x 4 7 x 5 7 x 6 7 x 7 7 x 8 7 x 9 8 x 0 8 x 1 8 x 2 8 x 3 8 x 4 8 x 5 8 x 6 8 x 7 8 x 8 8 x 9 9 x 0 9 x 1 9 x 2 9 x 3 9 x 4 9 x 5 9 x 6 9 x 7 9 x 8 9 x 9

Fives Count by 5s! 1 2 3 4 5 6 7 8 9 0 x 0 0 x 1 0 x 2 0 x 3 0 x 4 0 x 5 0 x 6 0 x 7 0 x 8 0 x 9 1 x 0 1 x 1 1 x 2 1 x 3 1 x 4 1 x 5 1 x 6 1 x 7 1 x 8 1 x 9 2 x 0 2 x 1 2 x 2 2 x 3 2 x 4 2 x 5 2 x 6 2 x 7 2 x 8 2 x 9 3 x 0 3 x 1 3 x 2 3 x 3 3 x 4 3 x 5 3 x 6 3 x 7 3 x 8 4 x 0 4 x 1 4 x 2 4 x 3 4 x 4 4 x 5 4 x 6 4 x 7 4 x 8 4 x 9 5 x 0 5 x 1 5 x 2 5 x 3 5 x 4 5 x 5 5 x 6 5 x 7 5 x 8 5 x 9 6 x 0 6 x 1 6 x 2 6 x 3 6 x 4 6 x 5 6 x 6 6 x 7 6 x 8 6 x 9 7 x 0 7 x 1 7 x 2 7 x 3 7 x 4 7 x 5 7 x 6 7 x 7 7 x 8 7 x 9 8 x 0 8 x 1 8 x 2 8 x 3 8 x 4 8 x 5 8 x 6 8 x 7 8 x 8 8 x 9 9 x 0 9 x 1 9 x 2 9 x 3 9 x 4 9 x 5 9 x 6 9 x 7 9 x 8 9 x 9

Fives, another way If you are multiplying 5 times an EVEN number: Take half of the number Tack a zero on the end! 6 x 5 Take half of 6 = 3 Tack the 0 = 30 If you are multiplying 5 times an ODD number: Subtract 1 from the number Tack a five on the end! 7 x 5 Subtract 1 from 7 = 6 Take half = 3 Tack the 5 = 35

Nines, Method 1 Use your fingers

Nines, Method 1 Bend the number you are multiplying Here is 9 x 4 (the 4th finger is bent) Your first digit in your answer is the number of fingers to the left. The second digit in your answer is the number of fingers to the right.

Nines, Method 2 One less = 9 Method 9 x 5 = Subtract 1 from the # you are multiplying (4) 4 will be your first digit in your answer To find the second digit, add to get 9: 4 + ___ = 9 4 + 5 = 9 So, your answer is 45.

Nines 1 2 3 4 5 6 7 8 9 0 x 0 0 x 1 0 x 2 0 x 3 0 x 4 0 x 5 0 x 6 0 x 7 0 x 8 0 x 9 1 x 0 1 x 1 1 x 2 1 x 3 1 x 4 1 x 5 1 x 6 1 x 7 1 x 8 1 x 9 2 x 0 2 x 1 2 x 2 2 x 3 2 x 4 2 x 5 2 x 6 2 x 7 2 x 8 2 x 9 3 x 0 3 x 1 3 x 2 3 x 3 3 x 4 3 x 5 3 x 6 3 x 7 3 x 8 4 x 0 4 x 1 4 x 2 4 x 3 4 x 4 4 x 5 4 x 6 4 x 7 4 x 8 4 x 9 5 x 0 5 x 1 5 x 2 5 x 3 5 x 4 5 x 5 5 x 6 5 x 7 5 x 8 5 x 9 6 x 0 6 x 1 6 x 2 6 x 3 6 x 4 6 x 5 6 x 6 6 x 7 6 x 8 6 x 9 7 x 0 7 x 1 7 x 2 7 x 3 7 x 4 7 x 5 7 x 6 7 x 7 7 x 8 7 x 9 8 x 0 8 x 1 8 x 2 8 x 3 8 x 4 8 x 5 8 x 6 8 x 7 8 x 8 8 x 9 9 x 0 9 x 1 9 x 2 9 x 3 9 x 4 9 x 5 9 x 6 9 x 7 9 x 8 9 x 9

Tricks Easy as counting! 12 = 3 x 4 -- One two equals three times four. 56 = 7 x 8 -- Five Six equals seven times eight. 1 2 3 4 5 6 7 8 9 0 x 0 0 x 1 0 x 2 0 x 3 0 x 4 0 x 5 0 x 6 0 x 7 0 x 8 0 x 9 1 x 0 1 x 1 1 x 2 1 x 3 1 x 4 1 x 5 1 x 6 1 x 7 1 x 8 1 x 9 2 x 0 2 x 1 2 x 2 2 x 3 2 x 4 2 x 5 2 x 6 2 x 7 2 x 8 2 x 9 3 x 0 3 x 1 3 x 2 3 x 3 3 x 4 3 x 5 3 x 6 3 x 7 3 x 8 4 x 0 4 x 1 4 x 2 4 x 3 4 x 4 4 x 5 4 x 6 4 x 7 4 x 8 4 x 9 5 x 0 5 x 1 5 x 2 5 x 3 5 x 4 5 x 5 5 x 6 5 x 7 5 x 8 5 x 9 6 x 0 6 x 1 6 x 2 6 x 3 6 x 4 6 x 5 6 x 6 6 x 7 6 x 8 6 x 9 7 x 0 7 x 1 7 x 2 7 x 3 7 x 4 7 x 5 7 x 6 7 x 7 7 x 8 7 x 9 8 x 0 8 x 1 8 x 2 8 x 3 8 x 4 8 x 5 8 x 6 8 x 7 8 x 8 8 x 9 9 x 0 9 x 1 9 x 2 9 x 3 9 x 4 9 x 5 9 x 6 9 x 7 9 x 8 9 x 9

The Final Facts 8 x 8 = 64 He ate and he ate and he sticks in the door, eight times eight is sixty-four. Eight times eight fell on the floor, picked it up it's sixty four. 6 x 6 = 36 Six times six equals thirty six (It rhymes) 3 x 3 = 9 Swing from tree to tree on a vine, three times three is the number nine. 

Only 6 left to go! 1 2 3 4 5 6 7 8 9 0 x 0 0 x 1 0 x 2 0 x 3 0 x 4 0 x 5 0 x 6 0 x 7 0 x 8 0 x 9 1 x 0 1 x 1 1 x 2 1 x 3 1 x 4 1 x 5 1 x 6 1 x 7 1 x 8 1 x 9 2 x 0 2 x 1 2 x 2 2 x 3 2 x 4 2 x 5 2 x 6 2 x 7 2 x 8 2 x 9 3 x 0 3 x 1 3 x 2 3 x 3 3 x 4 3 x 5 3 x 6 3 x 7 3 x 8 4 x 0 4 x 1 4 x 2 4 x 3 4 x 4 4 x 5 4 x 6 4 x 7 4 x 8 4 x 9 5 x 0 5 x 1 5 x 2 5 x 3 5 x 4 5 x 5 5 x 6 5 x 7 5 x 8 5 x 9 6 x 0 6 x 1 6 x 2 6 x 3 6 x 4 6 x 5 6 x 6 6 x 7 6 x 8 6 x 9 7 x 0 7 x 1 7 x 2 7 x 3 7 x 4 7 x 5 7 x 6 7 x 7 7 x 8 7 x 9 8 x 0 8 x 1 8 x 2 8 x 3 8 x 4 8 x 5 8 x 6 8 x 7 8 x 8 8 x 9 9 x 0 9 x 1 9 x 2 9 x 3 9 x 4 9 x 5 9 x 6 9 x 7 9 x 8 9 x 9

3 x 6, you get 18, that’s a lot of jelly beans! 3 x 7, we’re having fun, 3 x 7 is 21! Don’t stop yet, there’s plenty more, 3 x 8 is 24!

When chicks (6) carried a tree (3) they soon had aching (18) backs. 3 x 6 3 x 6, you get 18, That’s a lot of jelly beans! When chicks (6) carried a tree (3) they soon had aching (18) backs.

3 x 7 3 x 7, we’re having fun, 3 x 7 is 21! Picture a tall tree (3) surfing. (7) It bumps into the sun making a denty sun. (21)

Picture a tree (3) on skates (8) making a denty floor. (24) 3 x 8 Don’t stop yet, there’s plenty more, 3 x 8 is 24! Picture a tree (3) on skates (8) making a denty floor. (24)

6 x 7 Lots of animals at the zoo, 6 x 7 is 42! Picture chicks (6) surfing (7) to the Fort E Zoo. (42)

7 x 7 Lots of surfers in a line, 7 x 7 is 49! 7x7 is 49, you are cool, you are fine! Picture two surfs (7) crashing down on the Fort E twine. (49)

Picture chicks (6) on skates (8) tasting the Fort E cake. (48) 6 x 8 Hurry, scurry, don’t be late, 6 x 8 is 48! Six asked eight for a date, six times eight is forty-eight. Picture chicks (6) on skates (8) tasting the Fort E cake. (48)

Now you know facts 0 – 9!! 1 2 3 4 5 6 7 8 9 0 x 0 0 x 1 0 x 2 0 x 3 1 2 3 4 5 6 7 8 9 0 x 0 0 x 1 0 x 2 0 x 3 0 x 4 0 x 5 0 x 6 0 x 7 0 x 8 0 x 9 1 x 0 1 x 1 1 x 2 1 x 3 1 x 4 1 x 5 1 x 6 1 x 7 1 x 8 1 x 9 2 x 0 2 x 1 2 x 2 2 x 3 2 x 4 2 x 5 2 x 6 2 x 7 2 x 8 2 x 9 3 x 0 3 x 1 3 x 2 3 x 3 3 x 4 3 x 5 3 x 6 3 x 7 3 x 8 4 x 0 4 x 1 4 x 2 4 x 3 4 x 4 4 x 5 4 x 6 4 x 7 4 x 8 4 x 9 5 x 0 5 x 1 5 x 2 5 x 3 5 x 4 5 x 5 5 x 6 5 x 7 5 x 8 5 x 9 6 x 0 6 x 1 6 x 2 6 x 3 6 x 4 6 x 5 6 x 6 6 x 7 6 x 8 6 x 9 7 x 0 7 x 1 7 x 2 7 x 3 7 x 4 7 x 5 7 x 6 7 x 7 7 x 8 7 x 9 8 x 0 8 x 1 8 x 2 8 x 3 8 x 4 8 x 5 8 x 6 8 x 7 8 x 8 8 x 9 9 x 0 9 x 1 9 x 2 9 x 3 9 x 4 9 x 5 9 x 6 9 x 7 9 x 8 9 x 9

10s Count by 10s Tack a 0 after the number you are multiplying. 10 x 8 = 80

11s Multiply by 10 and add the number you’re multiplying. 11 x 9 =

12s Think of 10 x PLUS 2 x 8 x 12 = 8 x 10 = 80 8 x 2 = +16 96

The BIG THREE I’m in heaven, this number’s fun, 11×11=121 11 x 12, well how do you do?, 11×12=132 We are done, let’s close the door, 12×12=144

You are a Master Multiplier! Congratulations, ___________! Apply the skills you learned today, and you will be as fast as a calculator! ____________________ ______________ Teacher’s Name Date To print this page, click on “file” -- “print” -- “whiteboard”, and “current screen.”

Resources http://www.multiplication.com/teach.htm http://www.multiplication.com/interactive_games.htm