Quickly calculate multiplication trick with the number 9 (nine). To multiply the numbers 1-9, we use the technique Jarimatika. Jarimatika technique is a method of counting using fingers. This method is used to provide fast and precise understanding of the multiplication counting.
That is by letting your finger as the right side of the unit and the fingers of the left as tens.
Next image calculation by using the technique Jarimatika:
Multiplication 3 x 9 = .....
To calculate the multiplication of 3 x 9 by calculating bagiankiri finger to the right (you can see in the picture above calculation finger) 1, 2, 3 ... then finger to 3 (the middle finger) is folded.
See the picture below.
Once folded and then we sum sebagaipuluhan finger left part and right part of the finger as a unit and folded fingers (the middle finger as a barrier).
The number of fingers up from the left there are 2 which means there are 2 decades, so 10 + 10 = 20
The number of fingers standing on the right side there is 7, which means there are 7 units,
so 1 + 1 + 1 + 1 + 1 + 1 + 1 = 7. So, 20 + 7 = 27 ....
Make it easy .....
Hopefully useful and good luck
