MATH LESSONS WITH FUGO

MULTIPLICATION TABLES

Skippy___DingleChalk
Strategies to help remember Multiplication Tables
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2
Add the number to itself (in other words, double it) 
Example 2×9 = 9+9 = 18
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4
double, then double again 
Example 4×9: double 9 is 18, double 18 is 36
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5
Cut in half, then times 10
Example: 5x6: Cut 6 in half to get 3, then times 10 for 30
Or times 10 then cut in half
Example: 5x9: 9 times 10 is 90, then cut in half for 45
Also the last digit goes 5, 0, 5, 0, ... like this: 5, 10, 15, 20, ...
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6
when you multiply 6 by an even number, they both end in the same digit. 
Examples: 6×2=12, 6×4=24, 6×6=36, etc
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7×8
Think "5,6,7,8": 56=7×8
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8
Double, double, double!
Example: 8×6: double 6 is 12, double 12 is 24, double 24 is 48
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9
 is 10× the number minus the number. 
Example: 9×6 = 10×6−6 = 60−6 = 54
the ones digit goes 9, 8, 7, 6, ...: 9, 18, 27, 36, 45, ...
  the tens digit goes  0, 1, 2, 3, ...: 9, 18, 27, 36, 45, ...
subtract one to get the tens digit, and the tens and ones digit together make 9
Example: 9×5: tens digit is 4, 4 and 5 make 9, so 45
Example: 9×8: tens digit is 7, 7 and 2 make 9, so 72

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 your hands can help! Example: to multiply 9 by 8, hold your 8th finger down, and count "7" and "2", the answer is 72

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10
put a zero after it 
Example: 10×2 = 20
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11
up to 11x9: just repeat the digit. Example: 11x4 = 44
for 11×10 to 11×18: write the sum of the digits between the digits 
Example: 11×15 = 1(1+5)5 = 165

Note: this works for any two-digit number, but when the sum of the digits is more than 9, we need to"carry the one". Example: 11×75 = 7(7+5)5 = 7(12)5 = 825.
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12
is 10× plus 2×
Example: 12×4 = 40+8 = 48
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15
multiply by 10, then add half again
Example: 15×4 = 40+20 = 60
Example: 15×9 = 90+45 = 135
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20
multiply by 10, then double
Example: 20×4 = 40+40 = 80
Example: 20×7 = 70+70 = 140
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It's also helpful to remember your square(when you multiply a number by itself.)
1×1 =1

2×2 =4

3×3 =9

4×4 =16

5×5 =25

6×6 =36

7×7 =49

8×8 =64

9×9 =81

10×10 =100

11×11 =121

12×12 =144

Last trick I know:
5×5 = 25 is just one bigger than 6×4 = 24
6×6 = 36 is just one bigger than 7×5 = 35
7×7 = 49 is just one bigger than 8×6 = 48
8×8 = 64 is just one bigger than 9×7 = 63

This is a good video to memorize your multiplication tables.

I'm going to test you, okay Skippy?
Using this chart:

If you dont know how to use it:

This is a fun way to learn how to use it. (I suggest watching because its catchy and you can memorize your tables)

Also, Everyday I'm going to start asking you 5 questions about the multiplication table. Example:
7×8
Etc

So first, you know your 1-5 so lets start there.

1×6

2×6

3×6

4×6

5×6

6×6

7×6

8×6

9×6

10×6

Using the strategies I gave you, or using the box... Please comment the answers below and try to practice them as often as possible.
Once you answer these you'll be done for the day with your questions, and from here on out it will only be 5 questions instead of 10.