The first 4= the last 3 is a humorous advertisement, which is easy to understand and reminds people of many interesting scenes. This slogan means that in some cases, adding an extra 0 in front of some numbers and removing a 0 behind them is still equal to the original value. This is an interesting mathematical phenomenon, which can make people think more happily about the charm of mathematics in life.

The previous phenomenon of 4= 3 is not uncommon in life. For example, the date on our common calendar will have a 0 in front of it, but the 0 behind it is sometimes omitted. For another example, the amount of commonly used WeChat red envelopes is usually divided into units, but when displayed, an extra 0 will be added in front of it, and the following 0 will be omitted. These are all interesting phenomena of 4= 3 before.

In the past, the slogan "4= last 3" was just a joke, but it reflected the magic of mathematics. Mathematics is a magical subject, which allows us to better understand the world and crack the laws behind the phenomenon. Maybe mathematics seems to be a boring subject, but as long as you understand it with your heart, you will find the fun and significance.