1 / 18

# How do you round 9’s within a number? - PowerPoint PPT Presentation

How do you round 9’s within a number?. For example: 67, 9 82 becomes 68,000. Huh?. In this lesson you will learn how to round 9’s by using base ten blocks and place value concepts. Ones. Thousands. Hundreds. Tens. x 10. x 10. x 10. Midpoint. 700. 750. 8 00.

I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.

## PowerPoint Slideshow about ' How do you round 9’s within a number?' - fayre

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript

For example:

67,982 becomes 68,000

Huh?

In this lesson you will learn how to round 9’s by using base ten blocks and place value concepts.

Thousands

Hundreds

Tens

x 10

x 10

x 10

700

750

800

Benchmark Numbers

l l l l l l l l l l l

783

5500

5000

6000

5500 - 5999

5001 - 5499

5500

5000

6000

l l l l l l l l l l l

For example:

4,396 = 4,300

4,396= 4,400

Round 196 to the nearest ten.

20 groups of 10 = 200

190

200

Benchmark Numbers

l l l l l l l l l l l

196

10

20

40

30

Round 3,950 to the nearest 100.

40 groups of 100 = 4,000

4,000

Benchmark Numbers

l l l l l l l l l l l

3,950

45,890

Rounding down was easy.

Round 45,897 to the nearest 10.

Rounding up requires that

I move to the next place value.

45,890

45,900

Benchmark Numbers

45,897 rounds up to 45,900.

In this lesson you have learned how to round 9’s by using base ten blocks and place value concepts.

Use base ten blocks to build 2,999. the internet. Can you find a number that contains “9” as a digit?

Round that number to the nearest 10.