Mathematics Weekly Notes

One day, many line segments of the same length walked together. They saw straight lines and rays.

The line segments walked next to them, and before they could ask why they were quarreling, they saw Straight Line pulling a line segment over, letting it ride on its back, and said to the ray: "Now I am no lower than you. "Okay." The line segments suddenly realized, but as soon as they reacted, the ray pulled another line segment and let it ride on its back, saying to the straight line: "Now I am taller than you again." The straight line was not convinced and pulled it over again. He drew a line segment, let it ride on his back, and said to the ray: "Now I am taller than you." The ray felt it was unfair: you have two line segments, but I only have one line segment. It is so unfair. So, the ray pulled another line segment, let it ride on its back, and said to the straight line: "Now I am still taller than you."

In this way, the three types of lines kept comparing, The competition lasted for three days and three nights, but we still couldn't decide who was the longest. The three lines were exhausted, but the competition was not over yet. What can be done about this, since lines and rays can extend infinitely and be infinitely long without two endpoints that hinder them.

Today, my mother and I played a math game called "Addition, subtraction, multiplication and division equals twenty-four". That is: you use 4 numbers and use addition, subtraction, multiplication and division to calculate that it is equal to 24. Whoever calculates it first wins.

The first game started, 12, 1, 7, 10. I think: 12×2=24, but how can we find 2? At this time, my mother had already figured it out, 10-7-1=2, 2×12=24, oh, my mother’s head turned so fast! I had to admit defeat.

It’s the second game, and the numbers are 9, 1, 2, and 6, haha! I figured it out! 9-1=8, 6÷2=3, 3×8=24, yeah! I won! I cheered!

In the third round, the outcome will be decided. Whoever wins will get to eat ice cream. Therefore, I must win! It started, 8, 4, 9, 10. When you see 8, you have to look for 3, yeah! I've definitely won this round! I expressed my thoughts, 10-9=1, 4-1=3, 8×3=24, and I started cheering, yeah! yeah! yeah! …

Math games are so fun!