If rounding to the nearest 100, would you around 527 to 500 or 600?
Rounding is a technique used to simplify numbers. We round numbers to the nearest 100 by looking at the tens and ones place. To round to the nearest hundred, you must first identify which way the number should go.
Rounding Whole Numbers to the Nearest Hundred
Place Value: The value of each digit in a number based on its position in the number. Rounding: Simplifying a number by changing it to the nearest multiple of 10, 100, 1000, etc. WHY learn about rounding?! If helps us strengthen our mental math skills.
The ancient Egyptians used a form of rounding over 4000 years ago! The symbol '~' is used to represent rounding in mathematics. Rounding numbers can also be done with decimal numbers! Think of when we use the next dollar up strategies!
If the number 756 rounds to 800, what is the number that rounds to 700?
Work together in pairs: What strategies can you use to help you remember how to round whole numbers to the nearest 100?
- Rounding Roller Coaster
- Place Value Chart
- 0-4 Ignore & 5 or more go up one more.
Brain break: Draw a picture of a cat playing the guitar.
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