"Two digits" refers to numbers that consist of two numerical figures, ranging from 10 to 99. These numbers are commonly used in everyday life, such as in age, prices, and scores. Each digit can be any number from 0 to 9, with the first digit representing the tens place and the second digit representing the units place. In mathematics, two-digit numbers can be added, subtracted, multiplied, or divided just like any other numbers. They are often used in basic arithmetic exercises to help students, such as those in elementary school, practice their calculation skills and understand place value.