Example: Is there any difference between "seven up, two down, five up, one up" in the abacus formula?

Seven to three and one to one is the way to add ten in the abacus. That is, there are three beads on the abacus and to add seven, you must first pull out three beads and then pull out a bead on the left to enter one

Seven up, two down, five up, one is the broken five addition in the abacus, that is, when the number on the digit to be added is greater than or equal to five and less than or equal to seven, when adding seven, you must first pull out two beads at the bottom. Remove the bead that represents five on the top, and at the same time pull out a bead on the left to add one

The difference between the two is whether to break five, the former does not need to make five, the latter actually divides seven into two and five, using points The five out of five are equal to the original five, and then one is added to break the five.