In the first and second grades, the children hardly knew me. We had our first close contact from the third grade next semester, and we met frequently from the fourth grade. In class, the children pointed at me between numbers, and the whole number became a decimal. Move me two places to the right, and the number is larger than the original number 100 times; Move me two places to the left, and the number will be reduced to 100 of the original number. When calculating the addition and subtraction of decimals, students must align me in order to work out the correct answer. My appearance brought a lot of trouble to the children, but at the same time it also cultivated their good habit of being more careful. Gradually, I realized my importance. Originally, I was also an indispensable part of the mathematics kingdom.
In life, I also have a very necessary existence. Once, the clerk in the supermarket accidentally lost me when putting the price tag, changing the price of vegetables from 1.58 yuan /500g to 158 yuan /500g, and the price of rice from 50.00 yuan/bag to 5,000 yuan/bag. When customers came to buy vegetables and rice, they saw that the price on the label was ridiculous, shook their heads and left. The next day, the clerk didn't even look at the unsold vegetables. After the price was revised, the rice was sold quickly, but the remaining vegetables were thrown into the trash can because the leaves were yellow.
1August 23, 967, Vladimir, a famous astronaut of the former Soviet Union? Komalov was driving alone? Alliance one? The spaceship successfully returned home. When the spacecraft re-entered the atmosphere, a vicious accident suddenly occurred, which caused the parachute to fail to open. The spaceship and astronaut Komalov will be killed in two hours. In the remaining two hours, komarov and his family held a farewell ceremony. Komarov warned her daughter and the whole country: Please take every decimal point and punctuation seriously, and don't ignore every decimal point and punctuation. ? Time goes by, and it's time to say goodbye to the spaceship. The whole Soviet Union was silent, and people took to the streets in succession to mourn for the place where the spaceship fell! Everything at that time was an irreparable tragedy because the astronauts ignored a decimal point during the ground inspection!
This shows how important I am! Children, although I am very young, I am very useful, so don't ignore my existence!