Children's finger algorithm course

Children's finger algorithm tutorial is as follows:

1, finger positioning formula I have two hands, representing ninety-nine; Set the left hand to ten, and I can count to ninety; Pose your right hand and count from one to nine; It's convenient to add and subtract, so don't worry about calculation.

2. Fingers are fixed, with the index finger extending out of "L" and the middle finger extending out of "2"; The ring finger is "3" and the little finger is "4"; Four fingers and a thumb, the thumb is "5" to remember; Then extend your index finger to your little finger.

3, the right hand pointed out that practice the formula first, two tigers contend, in a few words, the four seas are home, the grain is abundant, the six animals are prosperous, the Eight Immortals cross the sea, and the nine Niu Yi hairs are urgent.

The finger speed algorithm tutorial is as follows:

1, finger speed algorithm-palm calculation-uses five fingers of the left hand as a digital dial to represent numbers, each finger represents a number, and the little finger, ring finger, middle finger, index finger and thumb can represent five numbers respectively.

2, the number 9 on each finger, first we see that there are three joints on our fingers. From top to bottom, the middle left side of the first joint stands for 1, the middle left side of the second joint stands for 2, the middle left side of the third joint stands for 3, from 3 down to the palm of your hand stands for 4, the upper end of your finger stands for 5, the pulp of your finger stands for 6, the first horizontal line stands for 7, the second horizontal line stands for 8 and the third horizontal line stands for 8.

3. Finger speed algorithm. The calculation method of palm calculation is a method to reproduce the calculation process by using brain images and mental arithmetic, and get the results. It regards the left hand as a five-gear abacus, and uses the right hand to count according to this abacus. When counting, point the fingers of your left hand with the fingers of your right hand.

4. The clear division of finger speed algorithm is: the right thumb points to the left thumb, the right index finger points to the left index finger, the right middle finger points to the left middle finger, the right ring finger points to the left ring finger, and the right little finger points to the left little finger. The corresponding professional division of labor does not interfere with each other. Which finger is clicked, which finger is extended, and which finger is not clicked, bending, indicating 0.