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Multiplication Tables - Argh! I Can't Learn Them!

How many times have your thought, "Aarrgghhh! Multiplication tables, I just can't learn them."

In reality there are only 9 facts you have to learn. They are 7 *8; 7*9; 7*12; 8*9; 8*12; 11*11; 11*12; 12*12.

How that is possible? Well, read on to find out. There is a color coded multiplication table at the bottom and the colors I refer to match up with the table.

You know that anything times 0 equals 0 - 0*1=0, 0*2=0, etc. (red on chart)

You know that anything times 1 equals that number - 1*1 = 1, 1*2 = 2, etc. (dark blue on chart)

You know that anything times 2 equals double that number - 2*1= 2, 2*2=4, etc. (purple on chart)

If you know that 2 times a number is double that number then you know that 4 times any number is double 2 times that number - 2*2=4 so 4*2=8 or 4 doubled. (brown on chart)

You know that to find 5 times any number you count by 5s - 5, 10, 15, 20, etc. (dark green on chart)

You know that 10 times any number is that number with a zero added to it - 1*10=10 or 1 with a zero, 2*10=20 or 2 with a zero, etc. (light neon green on chart)

You know that to get 3 times any number you count by 3s - 3, 6, 9, 12, etc. (light neon blue on chart)

If you know what 3 times a number is you double that number for 6 times that number - 3*2=6 so 6*2=12 or 6 doubled. (gray on chart)

You know that 11 times a number is double the number (until you get to 11*11 and 11*12) - 11*2=22, 11*3=33, etc. (yellow on chart)

So that leaves the nine facts I listed above that need to be learned. (black on chart)

Also, the commutative property of mathematics gives you the rest of the facts - 2*3=6 so 3*2=6, 4*5=20 so 5*4=20. (pale blue on chart)

X

0

1

2

3

4

5

6

7

8

9

10

11

12

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1

0

1

2

3

4

5

6

7

8

9

10

11

12

2

0

2

4

6

8

10

12

14

16

18

20

22

24

3

0

3

6

9

12

15

18

21

24

27

30

33

36

4

0

4

8

12

16

20

24

28

32

36

40

44

48

5

0

5

10

15

20

25

30

35

40

45

50

55

60

6

0

6

12

18

24

30

36

42

48

54

60

66

72

7

0

7

14

21

28

35

42

49

56

63

70

77

84

8

0

8

16

24

32

40

48

56

64

72

80

88

96

9

0

9

18

27

36

45

54

63

72

81

90

99

108

10

0

10

20

30

40

50

60

70

80

90

100

110

120

11

0

11

22

33

44

55

66

77

88

99

110

121

132

12

0

12

24

36

48

60

72

84

96

108

120

132

144

It sounds confusing but really isn't. To make it easier to understand, make yourself a multiplication chart for the facts 0 to 12 and color code like each step above. It should help you understand a little better. Multiplication facts really aren't that difficult when you break them down.

Come back soon for more tips and tricks.