Composition Home > 国小作文 > 四级级文文 > Topic

Addition, subtraction, multiplication

One night, Dad and I chatted with me. Dad: "Do you know the four arithmetic symbols?" I don't think anyone knows this. Then he said casually: "Of course it is '+-×÷'." Dad didn't move, then asked: "Then you know '+- ×÷'s origin?” I listened to my heart, just yesterday I read the “+-×÷” in a book, I didn’t expect it to come in handy today. I replied cheerfully: "It is the German mathematician Wei Demei, who evolved the '+-×÷' according to the capital letter "T". Because the '+' sign means more, so I added a small vertical on the top of the 'T'. The same '-' sign indicates the meaning of the reduction, so the vertical of the 'T' is removed; later, the digitist thinks that the '×' is a special form of the '+', so the '+' is turned The 45-degree angle indicates multiplication, and the same '÷' indicates division, so add a little below the '-' and above." "I didn't expect your little head to have so much knowledge, then you know '+ -×÷' In addition to being useful in mathematics, can you use it in other ways?" I never thought about it, so I shook my head. Dad said: "They have many uses in your growth." I am even more surprised, can this "+-×÷" and my growth be related? Dad looked at me in a puzzled manner and smiled and said: "Do not use the '+' sign for your own advantages, and don't use the '-' number for your own shortcomings." I was anxiously asked "that 'x' and "÷"?" Dad said: "Remember the help of others to use the X number, the grace of dripping water to report to the spring, to treat their own dissatisfaction with the nickname, three to five divided two, troubles I ran all the way. "After I heard it, I realized that Dad is teaching me to be a man. I want to treat my growth with "+-×÷". Disclaimer: This article is an original work. No media or publishing unit may reproduce or use it for other commercial purposes without the consent of the site and the author.

recommended article

popular articles