Will read all zeros between two non-zero numbers; Consecutive zeros are read only once; Don't read the last zero, but read the unit of the last digit; For example, 7070707 7070707 70007 70007 7007007 7007007 7007007 7007007.

Hello, friends and children! Welcome to the sharing series of second-grade math mistakes. In the last issue, we learned all kinds of "more exercise and less supplement" questions. Today, I will continue to share the "reading and writing numbers" that children often make in the second-grade math mistakes. Children must watch carefully!

The first thing to know is that numbers are made up of numbers. These ten numbers, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, can form many numbers. Numbers and numbers are indispensable in our math study. Life is even more inseparable from numbers and numbers.

Two digits are made up of ten and one. Ten digits mean ten, and digits mean one. When reading, starting from the high bit, the last 0 is not read, for example, 10. When writing numbers, start from a high place. If there is no one inside, write a 0, such as 107.

To compare the sizes of numbers, we must first compare them one by one from the highest place. Arranging different numbers in different ways can form different numbers, and arranging several numbers in descending order can form the largest number. Arrange several numbers from small to large (note: 0 cannot be ranked in the highest position) to form the smallest number. If you want to know how many numbers a * * * can make up, then arrange the top few numbers in turn, and then determine what numbers are on other numbers.