Yuan Man glanced at Jiang Xiaoli, then at Xiao Muyu, and suddenly felt abandoned.

She turned the car around and said, "Let's go, I'm going too!"

When she arrived at Xinhua Bookstore, Jiang Xiaoli couldn't find any books about competitions on the high school textbook shelf.

She found a salesperson, who led her to a bookshelf in a corner. "Here you go," the salesperson said, "all the competition books are here."

After politely thanking her, she started looking at the books one by one, and found three that she hadn't read before from the few books and question sets available.

Back in the high school supplementary materials section, Xiao Muyu and Yuan Man, having already come all this way, decided to pick out a few practice books.

However, both of them began to struggle with the choice.

Upon seeing Jiang Xiaoli arrive, Yuan Man felt as if she had seen a savior. "Jiang Xiaoli, could you help me and Xiaoyu pick out a couple of books that are suitable for us?"

She took the math reference book called "All-Round King" from Yuan Man's hand.

She flipped through a few pages and put it back on the shelf, commenting, "The questions in this book are too basic; doing them won't be very effective for you."

She pulled out two new reference books and selected a set of problems for them that were of medium to high difficulty and would have an improvement effect after they finished them.

Yuan Man's attitude was much better today. "Jiang Xiaoli, thank you!"

She raised an eyebrow. "No problem, don't mention it."

Just as she was about to leave the teaching aids area, Jiang Xiaoli suddenly noticed a small sign on the counter against the wall.

The small sign reads "Subscription Point for 'Mathematics Newspaper' and 'English Newspaper'".

She asked the sales clerk curiously, "Miss, do you have a sample of the high school edition of this 'Mathematics Newspaper'? I'd like to see it."

The saleswoman was being called "Miss" for the first time by a cute, baby-faced girl. She smiled and said, "Yes, yes, I'll show you."

After she finished speaking, she took out several copies of previous issues of "Mathematics Newspaper" from the cabinet behind the counter.

She quickly flipped through the newspaper, and her eyes lit up when she saw the last page.

The last page of the Mathematics Newspaper has a special little square with the title "A Competition Problem Every Week".

The question setter was also specially noted: "Question setter: Shang Run, gold medal teacher of the competition class of Peking University High School".

She was overjoyed; this was like a pillow delivered just when she was sleepy!

She spoke up decisively, "Miss, I'd like to subscribe to this newspaper. Do you also have a physics newspaper?"

The salesperson shook his head, "We don't have physics newspapers."

It's okay, having the "Mathematics Newspaper" is already a pleasant surprise. She filled in the school as the subscription address and bought the previous issues before leaving with Xiao Muyu and Yuan Man.

As the three were parting, she suddenly remembered something and called for the two to stop.

Jiang Xiaoli took out the "Mathematics Newspaper" she had just bought from her schoolbag, carefully tore off a small section of the competition questions from each newspaper, and stuffed the rest of the newspapers into Xiao Muyu's hands.

She instructed, "When you have free time, you can do the questions in the newspaper. The question types are quite novel. The back of the page I tore off is an advertisement, so it won't affect your viewing of the other pages."

Xiao Muyu chuckled, "You only read this small section of the newspaper when you subscribe? I'll subscribe to the rest and give you this small section."

Jiang Xiaoli packed her things, got on her bike, and left.

Her voice then drifted over, "If you keep being polite to me, I'm not playing with you anymore!"

Xiao Muyu shook her head helplessly, put the test paper away and stuffed it into her schoolbag.

Back home, Jiang Xiaoli couldn't wait to put several small newspapers on her desk and start reading.

On her way home, she kept thinking about the problem she had looked at in the bookstore.

This was the first time she had felt such an urgent desire to solve a problem; the unknown thrilled her.

When Li Guizhi came in to call her for dinner, she always said she would wait a while.

She tried several methods but got no answer.

Gradually, she went from sitting to squatting.

Her ponytail was now disheveled from being pulled so much that from behind she looked like a cute little dog with its fur standing on end.

This is the scene that Zong Jia saw when he came in.

He covered his mouth, trying hard not to laugh out loud.

After a long while, Jiang Xiaoli slid off the chair, as if she had been completely drained.

She came out to eat with her head hanging low.

She didn't even lift her eyelids when she saw Zong Jia, and just said listlessly, "You're here."

Seeing that she was eating absentmindedly while holding her bowl, Zong Jia asked curiously, "Little Pear, what kind of question is so difficult for you?"

She picked at the rice grains in her bowl, saying listlessly, "It's on the table, go look at it."

Zong Jia picked up the piece of tofu and looked at it, then his gaze fell on the densely packed draft calculations on the table.

He chuckled softly, but those who were sensitive at that moment heard it clearly.

A little head peeked out of the doorway, "What are you laughing at?"

Meeting those big, round eyes, Zong Jia's expression softened. "Eat first, and I'll tell you after you finish eating."

Hearing his words, Jiang Xiaoli changed her previous method of shoveling rice grain by grain and quickly shoveled the rice into her mouth.

Her cheeks were stuffed full, like a little hamster.

She forced herself to swallow her food, then tugged at his sleeve. "Go on, tell me!"

Zong Jia smiled and said, "I saw your calculations. Actually, you've overcomplicated the problem. The problem is like this..."

Two minutes later, the dark clouds above Jiang Xiaoli's head dispersed, and she happily hugged Zong Jiayu, "I understand! Thank you!"

The hug was brief. She was already sitting at her desk, working on the problem with the right approach. Zong Jia was still reminiscing about the sweet fragrance and softness of her embrace.

Watching her plunge back into her studies, Zong Jia went out to say goodbye to Li Guizhi, "Godmother, I'm leaving now."

Li Guizhi asked curiously, "Didn't you say you needed to talk to Xiaoli if you had anything to do?"

Zong Jia smiled and said, "She just solved a difficult problem, so I won't disturb her train of thought. We have a holiday tomorrow afternoon, right? I'll come back tomorrow."

"Haha, okay, after she finishes studying, I'll tell her, 'Xiao Zong, be careful on your way home!'" Li Guizhi thought of how her daughter had started doing her homework as soon as she got home and didn't try to keep her any longer.

After solving this problem, Jiang Xiaoli's thinking was completely unleashed, and she solved all the competition problems in the "Mathematics Newspaper" in a row.

She proudly propped her little feet up on her thighs and shook them, tapping her pen on a few small, neatly bound sheets of paper. "You think I can't handle you guys now!"

Li Guizhi brought over a glass of milk and placed it next to her. "Look at you, you're so happy just because you solved the problem? Who was that puppy looking like it had fallen into the water just now?"

Jiang Xiaoli picked up her milk and took a sip. "Hehe, I was just temporarily out of inspiration! By the way, where's Zong Jiayu?"

Li Guizhi chuckled, "Don't you see what time it is? Xiao Zong saw you doing your homework and left, saying he'd come back to talk to you tomorrow."

Thinking of the inspiration Zong Jiayu had given her, she nodded and praised, "Little Zong is truly a good comrade!"