今天的数学课上,我们学习了比较两个数的大小,我认识了大于号和小于号,大于号用“>”表示,小于号用“<”表示。在实际应用时,我们都知道5大于4,4大于2,3小于4,2小于5,但用符号表示时,我们班的许多同学都出错了,就是不会用大于号和小于号。我发现大于号和小于号正好是方向相反的,而且大于号和小于号都是一头是尖的,另一头是开口的,大的数始 Today’s math class, we learned to compare the size of the two numbers, I know greater than and less than the number, greater than the use of “> ” said less than “<” said. In practice, we all know that more than 4, 4, 4, more than 2, 3, less than 4, and less than 5, many of our classmates make mistakes when using symbols, that is, they do not use a greater than sign and a less than sign. I found that greater than and less than the number is exactly the opposite direction, and greater than and less than the number is a sharp tip, the other is open, the beginning of a large number