What are single digits and ten digits? How do you define single digits and ten digits?

1, single digits are expressed in decimal relative to integers. In a decimal expression, if there is no non

1, single digits are expressed in decimal relative to integers. In a decimal expression, if there is no nonzero number to the left of a unit, the integer is called a unit. A number consists of 10 digits, which is called a decimal number.

2. Unit digits are expressed in decimal relative to integers. Taking decimal as an example, a positive integer less than 10 is called a single digit; Integers not less than 10 are called multi-digits. In other words, in a decimal expression, if there is no nonzero number to the left of the unit, the integer is called a unit (also called a single digit).