**Differentiated Learning Objectives**

- All students should be able to calculate the upper and lower bounds for a number rounded to the nearest power of ten and decimal place using a number line.
- Most students should be able to calculate the upper and lower bounds for a number rounded to the nearest power of ten and decimal place using mental methods.
- Some students should be able to calculate the upper and lower bounds for a number rounded to the nearest power of ten, decimal place and significant figure.