Zhao Yiyi picked up Durian again and let it write on the blackboard.
Durian hesitated for a moment before writing several lines of equations.
2÷1=2
2÷1=1÷2?
2-1=1
2-1=1-2?
After finishing, Durian thought for a moment, then deliberately drew several more small question marks before turning to look at Antonio.
Antonio was stunned, his mind blank with shock.
So after understanding the commutative law of multiplication, Durian wanted to know whether division and subtraction also had commutative laws?
This ability to draw parallels was already very close to that of a human school-age child!
Durian was even more eager to learn than many human children. Human children might zone out during a lesson, or run off to play as soon as they finished learning, but Durian was willing to keep thinking.
An orangutan that loved learning!
Antonio picked up a marker and drew two crosses on the blackboard.
"Your idea is very good, but subtraction and division can't be rearranged according to the commutative law. Those equations don't hold," Antonio said.
Zhao Yiyi put Durian on the ground and quickly gestured in sign language, translating for it.
After listening, Durian shook its head vigorously.
"What does its head-shaking mean?" Antonio asked, confused.
"I don't know. Let it write again," Zhao Yiyi said, picking Durian up once more.
Durian wrote another set of equations on the blackboard.
1+2=2+1
1×2=2×1
1÷2=2÷1?
1-2=2-1?
Antonio understood, and every hair on his body stood on end in shock.
Some people in the audience understood as well, and a low murmur spread through the crowd. The Livestream Room likewise filled with exclamation marks and question marks.
"I understand what it means!" Antonio said, one hand touching his head and the other holding the microphone.
"When it asked the first time, I thought it was asking: Since the