Rounding Numbers Up and Down (Interactive Widget)
Rounding Numbers (Interactive Mathematics Lesson)
Use this interactive widget to see how the different methods of rounding numbers affect your number. Click on the number below to select which number to round and then select the method of rounding from the blue area. (Remember, the different methods for rounding often give the same results. Therefore, your number will not always change.)

Select the method for rounding: 
2.6 2.5 2.4 2.4 2.5 2.6 
"Round Half Up" becomes 3 becomes 3 becomes 2 becomes 2 becomes 2 becomes 3 