Study Curve

Just shorten a decimal
6.555555
6.5

From what I understand in your question I think that you are wondering about what it means to truncate a number. When you truncate a number you are making it shorter. So if you are dividing a number and keep getting a number that is for instance, 3.2222222 and the number goes on like that into infinity, you would round it to 3.2 if you are asked to round up or down to the nearest tenth , or to the nearest whatever is being asked for. The same is true when you are converting fractions to decimals or any place where numbers go on into infinity. When you are working with a calculator the calculator often does this truncating function for you and so it is important to know if your calculator does this. Check your user manual if you are using a calculator so that you know how your calculator deals with this issue.