1. First check the number of Fan Ling in the room from the hole outside the room: blue 7, white 1 1, red 17.
2, the abacus is one from left to right, ten at a time, the colors here are different, and the first one on the left of each color is one.
3, the upper bead is 5, the lower bead is 1, the upper bead is dialed down, and the lower bead is dialed up, and the sum is calculated. Half a catty = eight liang, so a catty = 16 liang.
4, Blue 7: So we just need to dial the single-digit beads, the next one above is 5, and the next two are 2, which adds up to 5+2=7.
5. Red 17: The abacus is hexadecimal, with a bead below the unit number indicating full 16, and the next number is 1, which is 1+46= 17.
6. White 1 1 digit: the two digits dialed up above are 10, and the one digit dialed up below is 1 0+1/kloc-0.
7. Finally, install the corresponding abacus, and you can unlock the mechanism to get the paper windmill.
The abacus of dreams consists of a wooden frame and a set of beads. The frame is generally made of wood, with beams and vertical beams on it, and beads are worn on the beams and vertical beams. Each bead represents a number, which is calculated by moving the position of the bead.
How to use abacus without dreams is as follows.
1, understand the representation of beads: there are usually two beads on the beam of a dreamless abacus, which represent 5 and1respectively; There are seven beads on the vertical beam, representing thousands, hundreds, tens, hundreds, minutes, centimeters and minutes respectively.
2. Addition: Use beads to indicate the numbers to be added, put them on the vertical beam in turn from right to left, and then move the corresponding beads upward until they reach the position of the beam. Finally, add beads to the beam to get the final result.
3. Subtraction: Similar to addition, the number to be subtracted is represented by beads, and then the corresponding beads are moved down until the beads reach the position of the vertical beam. Finally, the beads on the vertical beam are subtracted to get the final result.