Expand on prior knowledge of place value to teach your class how to round whole numbers. This essential skill is explained with the help of a number line before introducing the explicit rules for rounding numbers up and down. Work through the practice problems as a class, then check for understanding by assigning students the assessment questions. Best suited for fourth grade; this is a nice supplement to an introductory instructional activity on rounding whole numbers.

Concepts

rounding to 10, rounding, rounding to 100, rounding to 1000, rounding to 10000, rounding whole numbers

Show More Show Less

Additional Tags

rounding whole numbers, rounding to the nearest ten, rounding to the nearest thousand, rounding to the nearest million, rounding to the nearest hundred thousand, rounding to the nearest ten thousand, rounding to the nearest hundred, math

Show More Show Less

Pros

• Uses a number line to visually demonstrate what it means to round a number
• Includes practice with rounding to wide range of place values
• Allows teacher to print step-by-step instructions and guided practice problems

Cons

• Only includes one example of using the number line to round
• Requires background knowledge of place value into the billions

Common Core

3.NBT.A.1 4.NBT.A.3 MP5 MP7