TRICKS TO MASTERING MULTIPLICATION FACTS. Learn Addition Facts Learn FACT FAMILIES Subtraction is the opposite of addition Learn Multiplication Facts.

TRIC

KS TO M

ASTERIN

G

MULTIP

LICAT

ION FA

CTS

MULTIPLY BY 2

Double a number

Skip counting by 2’s

MEMORIZE THESE!!

Examples: 2 X 4 = 2 + 2 = 4

5 x 2 = 5 + 5 = 10

2 x 8 = 8 + 8 = 16

MULTIPLY BY 10

When multiplying a number by 10,

write the number down and

annex a zero to right of the one’s place

Examples: 7 x 10 = 70 10 x 8 = 80

30 x 10 = 300 14 x 10 = 140

MULTIPLY BY 11

For the number you are multiplying by 11 …

the product is that number written as a

double digit

Examples: 4 x 11 = 44 11 x 3 = 33

11 x 7 = 77 6 x 11 = 66

Exception: 11 x10 = 110

11 x 12 = 132

MULTIPLY BY 5

Remember: Any number times 5, ends in a 5 or 0

Use the analog clock,’s minute hand.

Each number on the clock represents 5 minutes

10 minutes past the hour, the minute hand is on the 2, so 5 x 2 = 10




MULTIPLYING BY 9

The factor that you are multiplying by, drop by 1

9 x 3 = 2_ 9 x 5 = 4_

The two digits of the product should add up to 9

9 x 3 = 2_; since 2+7=9, the product is 27 => 9x3=27

9 x 5 = 4_; since 4+5=9, the product is 45 => 9x5=45

MULTIPLY BY 12We all know that 12 = 10 + 2

Multiply the factor that you are multiplying by 12

by 10

then multiply it by 2

then add them together

12 x 4 => 10 x 4 = 40

2 x 4 = 8; 40 + 8 = 48

12 x 4 = 48

This is just using the Distributive property of multiplication and addition

MULTIPLY BY 4’S

Double the 2’s

If I don’t know x 4, go to x 2 and then double it

Ex: 4 x 8 = go to 2 x 8

= (2 x 8) double it

= 16 double it

4 x 8 = 32

MULTIPLY BY 8

Double the 4’s

If I don’t know x 8, go to x 4 and then double it (x 2)

8 x 6 = go to 4 x 6 double it

= 24 double it

8 x 6 = 48

MULTIPLY BY 3

MEMORIZE THEM!!!

MULTIPLY BY 6

Double the 3’s

If I don’t know x 6, go to x 3 and then double it (x 2)

8 x 6 = go to 4 x 6 double it

= 24 double it

8 x 6 = 48

Examples:

3 x 6 = (3 x3) x 2

= 9 x 2

= 18

MULTIPLY BY 7

MEMORIZE THEM!!!

TEST YOURSELF AT THE FOLLOWING SITES:

http://www.math-drills.com/multiplication/mult_v100_1212_0112_001.html

http://www.ixl.com/math/grade-3/multiplication-facts-to-12

TEST YOURSELF AT THE FOLLOWING SITES:

http://www.ixl.com/math/grade-3/multiplication-facts-to-12

http://www.math-drills.com/multiplication/multiplication_facts_to_81_target09_001.pdf

This presentation was created with the help of the After School Group:

Jayllia Brewer – 6th Gr

Gianna Sharp – 6th Gr

Kennedy Riley – 4th Gr

Hallie Williams – 6th Gr

Avery Ross – 6th Gr

Davion Rhone – 6th Gr

Tikayla Wade – 6th Gr

TRICKS TO MASTERING MULTIPLICATION FACTS. Learn Addition Facts Learn FACT FAMILIES Subtraction is the opposite of addition Learn Multiplication Facts.

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