What is the formula of the small abacus, the formula of the abacus?

Addition formula.

The addition of the non-carry is the addition of the carry position.

Straight to add five to ten plus break five into ten.

Add two: two on two, two on five, two on five, two on eight, into one.

Plus three: three on three, three down five to two, three to seven into one.

Add four: four on four, four down five to one, four to six into one.

Add five: five on five, five to five into one.

Add seven: seven on seven, seven on three, seven on two, five into one.

Add eight: eight on eight, eight on two, eight on three, five into one.

Add nine: nine on nine, nine on one into one, nine on four to five into one.

Subtraction formulas. The subtraction of the abdication of the abdication.

Straight subtraction, five subtraction, subtraction, subtraction, subtraction, ten subtraction, and five subtraction.

Minus two: two down two, two up three go to five, two back one back eight.

Minus three: three down three, three up and two to five, three back and one to seven.

Minus five: five under five, five back one back five.

Minus six: six under six, six back one to four, six back one back to five to one.

Minus seven: seven down seven, seven back one to three, seven back one back five to two.

Minus eight: eight under eight, eight back one to two, eight back one back to five to three.

Minus nine: nine under nine, nine back one to one, nine back one back to five to four.

Going to plate addition formula:

One up, two on two, three on three, four on four, five on five, six on six, seven on seven, eight on eight, nine on nine.

Five goes to four (4+1), two goes to three (3+2, 4+2), three goes to two (2+3, 3+3, 4+3), four goes five to one (1+4, 2+4, 3+4, 4+4).

Six on five into one +6), seven on two to five into one +7), eight on three to five into one +8), nine on four to five into one (5+9).

One up, two on two, three on three, four on four, five on five, six on six, seven on seven, eight on eight, nine on nine.

Five goes to four (4+1), two goes to three (3+2, 4+2), three goes to two (2+3, 3+3, 4+3), four goes five to one (1+4, 2+4, 3+4, 4+4).

Six on five into one +6), seven on two to five into one +7), eight on three to five into one +8), nine on four to five into one (5+9).

Common terms. Neutral: When the upper and lower parts of a certain gear are away from the beam, it is called neutral. A blank bin indicates that there is no count in this file, or it means 0.

Empty disk: Each file of the abacus is empty, which means that there is no counting in the whole disk, which is called an empty disk.

Inner beads: The abacus beads that count by the beam are called inner beads.

Outer beads: The abacus beads that are not counted from the beam are called outer beads.

Dial up: refers to the lower bead dial against the beam.

Dial down: refers to the upper bead dialed against the beam.

Dial off: refers to the upper or lower bead off the beam.

The abacus mantra slips smoothly:

1. One on one, two on two, three on three, four on four, five on five, six on six, seven on seven, eight on eight, nine on nine.

2. Five to four (4 + 1), two to five to three (3 + 2, 4 + 2), three to five to two (2 + 3, 3 + 3, 4 + 3), four to five to one (1 + 4, 2 + 4, 3 + 4, 4 + 4).

3, one to nine into one (9 + 1), two to eight into one +2), three to seven into one, +3), four to six into Shiliang one +4), five to five into one +5), six to ** one (4 + 6, 9 + 6), seven to three into one (3 + 7, 4 + 7, 8 + 7, 9 + 7), eight to two into one (2 + 8, 3 = 8, 4 + 8), nine to one into one (1 + 9, 2 + 9, 3 + 9, 4 + 9).

4. Six on one to five into one (finger hole +6), seven on two to five into one +7), eight on three to five into one +8), nine on four to five into one (5 + 9).

5. No removal and retreat is also one, no removal and retreat is also two, no division is only return to withering and retreating and three, no removal and retreat is also four, no removal is also five, no removal is also six, no removal is also seven, no removal is also eight, no removal is also nine, <>

The formula for the abacus is as follows:1, one up, two on two, three down five to two, four down five to one, five to five into one, six on one to five into one, seven on two to five into one, eight divided by two into one, down five to four, nine divided by one into one.

2, two on two, four under five divided by one, six on one to five into one, nine divided by one into one, one on one, three down five to two, five to five into one, seven on two to five into one, eight divided by two into one, down five to four.

3, four down five to one, nine divided by one into one, three down five to two, eight divided by two into one, two on two, bright hole seven on two to five into one, down five to four, one on one, five to five into one, six on one to five into one, nine by one into one.

Withdrawal formula. There is no removal and retreat, no removal and retreat, and no retreat and opening the key year, and no removal and retreat.

There is no removal and retreat and four returns, no removal and retreat and five returns, and no removal and retreat and six returns.

There is no division and retreat and seven returns, no removal and retreat and eight returns, and no removal and retreat and nine returns.