"Give me the pi recites like a stream." The green-skinned frog croaked.

"Uh," Fang Ning was stunned for a moment, and then immediately reacted, "No one can do this." ”

"Why?" The green-skinned frog was puzzled, and then said with disdain, "It can't be that you can't do it yourself, so you say that, right?" ”

"No, that's because pi is an infinite number that no one can memorize, let alone memorize it ......backwards," Fang Ning explained.

The green-skinned frog was stunned for a moment, and then said in disbelief: "You say infinite is infinite, you have to prove it to me." That's the guy who gave the question. ”

Fang Ning hurriedly instructed the guy in the Divine Prison to find the calculation formula for him, after all, except for remembering that the ratio of pi was between 3.1415926 and 3.1415927, all other related knowledge was forgotten, and he only remembered that the textbook did not give a specific derivation process.

It didn't take long for Fang Ning to take out a stack of blank paper from the system space and start writing out derivation formulas on it, not too long, but unless it was a professional, it was impossible for most people to get it out in just ten minutes.

So outside the gate of heaven, in front of everyone's eyes, they saw Xia Kejia in front of a frog, doing math problems, and mathematical symbols fell on the white paper.

"My God, it turns out that the things that the Heavenly Dao wants to investigate are so extensive......"

"Yes, some people think that after cultivating, they can skip school and study. Now they should always understand that as long as there is a shortcoming, some opportunities will pass by in the future. ”

Seeing this scene, many sarcastic voices suddenly disappeared, and were replaced by various reflections.

"I didn't expect that the real dragon, who travels 24 hours a day, actually has kung fu to learn mathematics, which is really admirable."

"However, the math problems that Heavenly Dao wants to come up with should be very difficult, right? Can he fix it? Some still don't believe.

More than ten minutes passed, and Fang Ning finally finished copying the answer and handed it to the frog to read.

"Damn, that guy gave me the wrong question." The green-skinned frog jumped on the spot a few times, and then said, "Okay, for the sake of your frog language level six, even if you pass this time, you can continue to go up." ”

Hearing this, Fang Ning hurriedly sorted out his instrument, and then moved forward steadily, easily ascending the third step, and came to the front of the fourth step.

"Shhh

Outside the gate of heaven, everyone was shocked when they saw this, Xia Kejia actually walked through the third step so lightly?

This surprised them too much, they thought that the third step of this mutation would either bring a turbulent wave or be thrilling, but they never thought that Xia Kejia could pass the test by only solving a math problem?!

"Could it be that the math problem is actually an eternal problem?" Someone wondered.

"It's not a time-old problem at all, on the contrary, it's a mathematical problem that has been solved thousands of years ago, calculating pi." A youkai with excellent eyes, Exit explained.

"Oh, pi, what is the meaning of Heavenly Dao's investigation of this?"

"I don't know, maybe it's just a random problem, right?"

At this time, among the crowd watching the ceremony, there was a man in a long robe, who looked down at the clouds under his feet when he saw this, but he was thoughtful.

Heavenly Dao's investigation of this must have a profound meaning.

It's just that His Holiness was able to pass the test so easily, but it wasn't quite right.

Before Fang Ning walked to the fourth step, he didn't immediately raise his legs.

He asked the system uncle, "Can you go on?" Do you have any new instincts? ”

Uncle System hesitated: "I don't feel anything special, it seems to be an ordinary step, but is there something wrong with this?" ”

Fang Ning looked around, and then found that the green-skinned frog was still under his feet.

As soon as he had an idea, he immediately thought about the sound, and of course it was still a "quack" sound......

"Brother Frog, dare to ask how to walk the remaining steps?"

"How to get around? You just go up and the test is over. Mind, strength, knowledge, after the three steps, all that remains is to give a reward for each step taken. The green-skinned frog croaked.

System Prompt: (The system hosts the host body.) ）

After Fang Ning retracted the system space, he could only say "hehe" to this prompt......

Outside the Heavenly Gate, the people who didn't know anything about it only saw that the chivalrous armor stopped, and some creatures began to talk nonsense again.

"Hehe, it seems that in the fourth level, the chivalrous armor is going to be stumped again."

"yes, this time, he definitely didn't get through so easily."

In the southeast of Tianmen, the demon lord is difficult to understand, his brows are deeply locked, the topic of the third level just now, the calculation process of the chivalrous armor, of course, he can see it clearly.

"Master, do you think Lord Qinglong has a hard time at the fourth level?" Saki Yamanashi asked worriedly.

Zhi Nan shook his head slightly: "There is no fourth level, these nine steps, only the first three are passes, and the back ones are all rewards." ”

"How do you know?" Saki Yamanashi was surprised and delighted.

Zhi smiled and said nothing.

The middle-aged man in the black robe said proudly: "The Buddha has great wisdom and knows all the languages of the world, and what the frog said, the Buddha has already understood." ”

"Hey, so, Uncle in black robe, you can also understand the croaking of frogs?" Yamanashi said in amazement.

"Uh...... I am the embodiment of the Buddha's black robe, and I have accompanied the Buddha for countless years, and I also have this memory, and I can understand the words of the frog. Hearing this, the black robe was slightly embarrassed.

Sure enough, the knight walked up the fourth step.

Then a golden light flew out from above the Heavenly Gate and fell on the knight's body.

Xia Kejia opened his right hand, only to see that it was a palm-sized red fruit, with purple qi rising on it, which was absolutely extraordinary.

Then the crowd smiled at him, and walked briskly up the fifth step.

Then another golden light flew out from above the gate of heaven and fell in front of the knight armor.

This time, it was a hideous monster, and its form was terrifying, making people daunting.

Everyone saw that Xia Kejia's eyes lit up, and his whole body was full of white anger, and he pressed towards the hideous monster.

The monster had no power to resist in the face of the sky-high white gas, and was swept away by the white gas at the moment, and it suddenly turned into nothing.

Sixth, a piece of ore.

The seventh, a sapling.

The eighth, a glass of water.

The Ninth ,...... Without.

Uncle System wondered: "No, the reward given by Tiandao Father should be getting better and better, why doesn't this ninth one exist?" ”

Fang Ning was also puzzled, thinking around, and suddenly he saw the green-skinned frog that was still jumping with him, and suddenly said, "I know what the ninth is?" ”

"What is it?" Uncle System wondered.

"It's this frog." Fang Ning affirmed.

"Uh, could it be that some princess turned into? Rich man, will you kiss it and go back home with you? That's not going to work, don't forget that you can't get married until level 100, and you're already engaged. Uncle System immediately said vigilantly.

"How is this possible?" Fang Ning was speechless.

Then Xia Kejia lowered his head and asked the frog, "Brother frog, what is the reward for this ninth step?" ”

The green-skinned frog said as a matter of course: "Of course, I recognize you as the master, and this is the greatest reward." You are the first person to pass the nine steps, I am the Heavenly Monument Instrument Spirit, there was a mysterious guy on you before, and he beat me for a long time, and I could only temporarily submit to it. Now that you have passed the test, I sincerely take refuge in you, and I will teach you all the secrets of this heavenly monument in the future. ”

"Uh, I see." Uncle System was very depressed.

It said to Fang Ning: "There is really no reward for cooperating with the ninth order, this frog is originally a Heavenly Tablet Artifact Spirit, I will just beat it a few more times, there is no need for it to sincerely take refuge." ”

Fang Ning was very speechless and said: "Forget it, I'll just say that this Heavenly Monument always felt useless before, it turned out that it didn't tell us many things." Sure enough, the twisted melon is not sweet, but fortunately, it is now wholeheartedly refuge, and it must be very powerful in the future. ”

When the system uncle heard this, he was slightly satisfied: "That's okay, it depends on its performance in the future, if it doesn't perform well, I will beat it a few more times." ”