Fusu heard this and said immediately.

What?

Calculating?

Zhao Long was shocked after hearing this, "What the hell? Calculation is the oldest mathematics. Have you ever studied such ancient mathematics?"

"Ancient...ancient?"

Fusu was stunned after hearing this, Ying Zheng was also stunned after hearing this, and Li Si was also stunned after hearing this.

This calculation is something that all those who want to be officials must learn. After all, they often need to process data.

Could it be that in this future life, there is no need to calculate?

"That's right...ever since you have abacus, you no longer need to calculate, right?"

"abacus?"

Fusu was stunned again after hearing this, "Sir, what is the abacus?"

Damn it?

"You don't even know abacus? Didn't your teacher teach you this?"

Zhao Long was greatly surprised when he heard this.

Although the origin of the abacus is uncertain, it has been around for at least a thousand years, right?

Moreover, what is different from paper is that this thing can basically settle accounts and everyone can have it!
Chapter completed!