Writing ideas and main points: I will give a detailed description of math diary's addition and subtraction, and then express my own thoughts and opinions.

Text:

I was bungee jumping with Yazhong and Mans this evening. We were dancing happily when Muncie said, "I have a math problem for you to solve. I have 65,438+08 sweets, 6 for Yazhong and 5 for Yanzi. How many sweets did you buy? "

We have calculated that we can add 618+518 =11. How much is left? I calculated again and put1-1118 = 718. It turns out that there are only 7 18 left! ? How interesting the scores are! There is fragmentary knowledge in life.