Students learn how to round any number to the nearest 10, 100 and 1000. As learning progresses students begin to use mental methods for rounding and estimating solutions. An interactive Excel file is included with the lesson for additional practise.

**Differentiated Learning Objectives**

- All students should be able to round an integer to the nearest 10 and 100 using a number line.
- Most students should be able to round any number to a given power of ten.
- Some students should be able to determine the upper and lower bound of a number that has been rounded to a given power of ten.

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