Perkiraan mudah..serius..

bagi sesiapa yang payah nak menghafal sifir 6,7,8,9..

aku jumpa cara yang mudah..hahaha

Step 1

Choose the numbers to multiply. Example: 7x8
Step 2
Put together the fingers whoses values you want to multiply.
Step 3
Now count the touching fingers and the ones below them. The number you get will be the tens. Example: 5

Step 4
Now multiply the fingers above the ones touching of the left hand and the ones in the right hand. The number you get will be the units. Example: 3x2=6

Answer: 56

**In some cases you will get a number of units bigger than nine, in that case sum both quantities**
Example: 7x6
- Touching fingers + the ones below  ->  3
- Fingers above the ones touching in left hand  ->  3
                                                                                                               3 x 4 = 12
- Fingers above the ones touching in the right hand  ->  4

                                                                                 3        (tens)
Now we've got 3 tens and 12 units  ->                  + 12      (units)
                                                                             ---------
                                                                                  42     (final result)

Lagi trick untuk sifir 9...

Here's an extra trick for the whole table of nine.
- First put your hands in front of you
- Then ascribe values from 1 to 10 to your fingers
- Fold the finger whose value you want to multiply nine times
- The fingers remaining unfolded in the left will be the tens
- The fingers remaining unfolded in the right will be the units

Example:  9 x 4
- Fold the fourth finger
- Fingers remaining unfold in the left  ->  3  (tens)
- Fingers remaining unfold in the right  ->  6 (units)
- Final result  ->  36