Bai Xiaofan didn't believe that this person knew what his score was with one casual glance. Unless he had been silently calculating while he was still doing the paper. But didn't he find that tiring?

Acting cool indeed required skills. If he became a teacher in the future, he could use this trick in front of his students too.

As he spoke, Curtis looked at Bai Xiaofan with a baffled expression. "Why are your learning abilities so poor? Your older sister is so smart. Your genes can't be that bad."

Indignant, Bai Xiaofan said angrily, "How would I know if what you're saying is right or wrong?"

Curtis pointed at the first wrongly answered question and said, "Textbook page 9. This concept is written on the 12th line. Take a look yourself."

Bai Xiaofan looked at him as if he was a nutcase and flipped open his math book, not believing him. To his surprise, he actually found that concept written there. Indeed, he had chosen the wrong answer.

But he had guessed this question anyway, so there wasn't a need to feel indignant even if he had gotten it wrong. But Curtis's perfect prediction was what astonished him.

"I don't believe it. He must have happened to memorize this page," said Bai Xiaofan.

Curtis could tell that Xiaofan wanted to test him, so he circled out all the wrongly answered questions.

Without waiting for him to speak, Bai Xiaofan pointed at one of the circled questions and said, "This question clearly wasn't answered wrongly."

Curtis said calmly. "Look up Page 38, the second large diagram for the explanation."

Bai Xiaofan flipped through his textbook. Then, his eyes grew even wider.

"It's here. But where exactly am I wrong?" Bai Xiaofan couldn't tell what he had done wrong even looking at the textbook. But quietly, he had become convinced of Curtis.

Thus, Curtis explained in detail to him. Only then did the latter completely understand the concept. Instantly, he admired Curtis from the bottom of his heart.

By now, he had complete faith in Curtis's knowledge. But he still found his memory unbelievable, so he randomly pointed to a wrong answer and continued asking, "What about this?"

"Page 17, last line," replied Curtis.

"And this one?"

"This is a concept from your previous grade," Curtis responded without even having to think.

Bai Xiaofan vaguely had an impression of it; it did feel like he had seen this question for a while now. Therefore, he didn't verify it. He immediately pointed at another question. "What about this one?"

"You're in the right direction for this one. What went wrong was your application of the concept learned in elementary school."

Bai Xiaofan: "…"

Curtis massaged his temples. Xiaofan couldn't even do the elementary school problem sums. He was so disappointed.

Wide-eyed and tongue-tied, Bai Xiaofan stared at Curtis and couldn't utter a single word.

Unable to listen anymore, Bai Qingqing turned her head and looked at them. "Alright, Bro, stop testing him. He has the legendary photographic memory."

"Do such people really exist?" Bai Xiaofan thought of Huang Rong's mother in "The Legend of the Condor Heroes", who had tricked Zhou Botong into giving her his secret martial arts manual using her photographic memory, driving Zhou Botong to madness.

All along he had thought that such abilities would only be seen in novels and television dramas. Unexpectedly, he met someone in real life who had such an ability.

Bai Xiaofan was greatly astonished. But because of the fabricated television plot, he didn't detect Curtis's abnormality in the slightest.

Curtis smiled and glanced at his mate, before continuing to teach Bai Xiaofan.

By now, Bai Xiaofan was already completely convinced by him. Due to his fear, he also didn't dare to daydream and learned very seriously.

After he finished explaining the questions, Curtis took out a piece of white paper and easily wrote down tens of questions.

He then pushed the paper to Bai Xiaofan. "You have too big a gap of knowledge. You've got to start learning from the lower levels' concepts. First, practice the concepts I just taught."