There is mathematics everywhere in life, and mathematics is a process of thinking. Mathematics is not only in our lives, but also in fairy tales.

One sunny day, a sly fox was thinking about how to buy something cheaper on the road. The sly fox saw a lamb selling fruit in the distance. The lamb was not good at math, so the sly fox ran over and asked, "What percentage of the apple is this pulp?" The lamb said, "The pulp accounts for 75%, and an apple 1 yuan." The sly fox had a brainwave and said, "In this way, the pulp of an apple is 0.75 yuan. I mainly eat pulp, so I will give you the apple core." After listening to this, the lamb tried every means to take out the stone, but he was afraid to break the apple. The sly fox looked behind him and said, "since you can't take it out, give me the core." You are useless anyway. " The lamb thought what the fox said was reasonable and sold him five apples. Then the fox proudly asked, "How much pulp does this banana take up?" The lamb said, "Eighty percent, a banana is 2 yuan." The sly fox said, "So a banana only needs 1.6 yuan? I buy 10 bananas, and the banana peel is useless. Give me a 15% discount anyway! " The lamb said, "Well ... banana peel is useless anyway. I'll give you a 15% discount." After that, Lamb calculated 10× 1.6×80% in his notebook, and it took Lamb five minutes to finally figure it out. The lamb said "1 1 yuan". After paying the money, he left triumphantly.

At dusk, the lamb went home. When she got home, the lamb's mother said, "How many fruits did you sell today?" The lamb said, "Five apples and 10 bananas." Mother lamb made a draft in her notebook: 5× 1+2× 10=25 yuan. Lamb's mother said, "How much did you earn today?" Lamb calculated11+3.75 = 14.75 yuan and said, "14.75 yuan." The lamb's mother was frightened. Say, "Are you kidding? Is that all you sold? I'm at a loss! ? How do you sell it? " The lamb said, "Today, a monkey came to ask me the percentage of pulp, and I told him, and then he …" Mother goat was furious and said; "How do you learn math? How much is your fruit? This time we lost more than ten pieces! " The lamb was ashamed and thought: We must learn math well and do more math problems in the future!

Ah, there is mathematics everywhere, whether in fairy tales or in life. This shows how important mathematics is. We must study hard!