We use a decimal point to separate units (ones) from parts of a whole, such as tenths, hundredths, thousandths, etc. \({0.1}\) is a tenth, \(\frac{1}{10}\), of a one ...

4 tenths - 2 tenths = 2 tenths. In this example, the first number has two decimal places and the second number has three decimal places. Let's work this out step by step. 4 thousandths cannot be ...