Khan Academy Wiki
Rounding whole numbers
Rounding whole numbers 256
Description
Exercise Name: Rounding whole numbers
Math Missions: 4th grade (U.S.) Math Mission, 5th grade (U.S.) Math Mission, Pre-algebra Math Mission, Mathematics I Math Mission
Types of Problems: 1

The Rounding whole numbers exercise appears under the 4th grade (U.S.) Math Mission, 5th grade (U.S.) Math Mission, Pre-algebra Math Mission and Mathematics I Math Mission. This exercise practices rounding to different places in whole numbers

Types of Problems[]

There is one type of problem in this exercise:

  1. Round as specified: This problem gives you a number and asks you to round it to either the hundreds or the thousands (though it would be reasonable to round to the tens also). Users are intended to simply type the correct answer in the answer box.
    Roundwhole

    Round as specified

Strategies[]

This exercise is easy to get accuracy badges because rounding is a fairly simple concept. speed badges should also be considered easy because it can be done very quickly, but be careful.

  1. The problems can be rounded to either hundreds or thousands so don't fall into a trap of assuming it will always be one. It can be both.

Real-life Applications[]

  1. Knowing how to count is essential for learning algebra and the higher maths, and counting is used for almost everything humans do.
  2. When one shops, chances are they pay a sales tax. If the sales tax is and they buy something for , the sales tax is , which is rounded to .