Mammoth Memory

9 Times table

Nine times table
Multiplier less one = 1st `N^o`
`9` minus 1st `N^o` = 2nd `N^o`

Take one from the other multiplier and this gives the first number. Take this first number away from nine and you have your second number. The first number and second number always add up to nine.

 i.e.

`2times9`   `=>`    `(2-1)=1`   and   `9 - 1=8`               `= 18`

`3times9`   `=>`    `(3-1)=2 `   and    `9 - 2=7`               `= 27`

`4times9`   `=>`    `(4-1)=3 `   and   `9 - 3=6`               `= 36`

`5times9`   `=>`    `(5-1)=4`   and   `9 - 4=5`               `= 45`

`6times9`   `=>`    `(6-1)=5`   and   `9 - 5=4`               `= 54`

`7times9`   `=>`    `(7-1)=6`   and   `9 - 6=3`               `= 63`

`8times9`   `=>`    `(8-1)=7`   and   `9 - 7=2`               `= 72`

`9times9`   `=>`    `(9-1)=8`   and   `9 - 8=1`               `= 81`

`10times9` `=>` `(10-1)=9`   and   `9 - 9=0`               `= 90`

`11times9` = see 11 times table = repeat the multiplier `9 = 99`

`12times9` = see 12 times table = `10times9`  then  `90+(2times9)=108`

NOTE:

1 and 8, 2 and 7, 3 and 6, 4 and 5, 5 and 4, 6 and 3, 7 and 2, 8 and 1, 9 and 0 all add up to nine

 

9 Times fingers

 Put your hands out in front of you. If your fingers are numbered from one to ten, drop the finger number you're multiplying by `9` and read your hand.

(See how many fingers before and after the bent finger)

Here’s a visual way of doing the 9 times table.

 

Hold your hands out with palms on the desk and put a number next to each finger from left to right

 

Examples

 

Bend the second finger down, the number that is left of the bent finger will give you the first part of the number, then the amount of fingers to the right of the bent finger gives you the second part of the number, for 9x2 =18

Follow a similar procedure for each of the following:

NOTE:  

1 finger before the bent finger

8 fingers after the bent finger

Answer: 18

 

The third finger bent down would give 27, Can you see it now? 

NOTE:

2 finger before the bent finger

7 fingers after the bent finger

Answer: 27

 

Using fingers on hands to work out four times nine

NOTE:

3 finger before the bent finger

6 fingers after the bent finger

Answer: 36

 

the 5th finger bent down would give 45, Amazing!

NOTE:

4 finger before the bent finger

5 fingers after the bent finger

Answer: 45

 

the 6th finger bent down would give 54, See!

NOTE:   

5 finger before the bent finger

4 fingers after the bent finger

Answer: 54

 

 the 7th finger bent down would give 63.

NOTE:  

6 finger before the bent finger

3 fingers after the bent finger

Answer:  63

 

The 8th finger bent down would give 72

NOTE:

7 finger before the bent finger

2 fingers after the bent finger

Answer: 72

 

 The 9th finger bent down would give 81

NOTE:

8 finger before the bent finger

1 fingers after the bent finger

Answer: 81

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