When I arrived at the supermarket, I pushed my shopping cart and looked around to see what I wanted to buy. In a short time, the shopping cart was full of six kinds of snacks I carefully selected: American sunflower seed 0.87kg, banana slice 0.78kg, hawthorn slice 0.68kg, preserved plum 0.48kg, salted peanut 1.06kg, and the original total price was14.40+16.54+. When checking out, the cashier's sister said that * * * was cheaper 10.45438+0 yuan because of the discount, and now it is ***74.9 yuan. My sister gave me another dark blue card, and I asked inexplicably; "Sister, what is this?" She replied, "This is a scratch card. Customers who spend all their money in 68 yuan can get it. The highest bonus on the card 15000 yuan! " I scraped the prize area carefully, checked as required, and won the prize in 2 yuan, so I only spent 72.9 yuan.
I skipped back to my grandmother's house, took out the snack Yiyi from my shopping bag, and exchanged the remaining 27. 1 yuan for my grandmother. I also said, "Grandma, it was originally 85.3 1 yuan, but it was 74.90 yuan after the discount, and the scratch prize earned 2 yuan, only 72.9 yuan." Grandma said with a smile; "Yuanyuan (my nickname) really counts, and she must be a person who will live a good life in the future!"
I had nothing to do at home in the afternoon, so I picked up a math extracurricular reading and read it. See such a topic: Xiaohong wrote a seven-digit number, three eights and four zeros. When Xiaohong read this number, her grandmother only heard Xiaohong read two zeros. Ask Xiaohong what this number might be.
I thought hard, thought over and over again, and finally came up with four different answers in order. The four different answers are: 8080800, 8080080, 8080008, 8000808.
From this topic, I understand that no matter what topic you do, you can't just be satisfied with coming up with an answer. Only by considering problems comprehensively and orderly and developing good thinking habits can we really learn mathematics well.