1 / 6

Rounding Numbers

Rounding Numbers. Lesson 29. Math Vocabulary. To “round” a # means: To use the “strength” of numbers to change or keep another number’s value, so that the entire number is not exact but close to the original. Two types of #s. Strong Numbers: 5 6 7 8 9

colum
Download Presentation

Rounding Numbers

An Image/Link below is provided (as is) to download presentation 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. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Rounding Numbers Lesson 29

  2. Math Vocabulary To “round” a # means: To use the “strength” of numbers to change or keep another number’s value, so that the entire number is not exact but close to the original

  3. Two types of #s Strong Numbers: 5 6 7 8 9 *Have the strength to CHANGE a number (+1) Weak Numbers: 0 1 2 3 4 **Have no strength and keep numbers the same

  4. Rounding Numbers Steps: • Identify # to be rounded • Underline# to be rounded • Circle # AFTER underlined # • Determine if # AFTER is strong or weak… • Round • Change remaining #s AFTER to 0s. Examples: Round 283 to nearest hundred: 283 ≈ 300 Round 283 to nearest ten: 283≈ 280

  5. Rounding Numbers Step Summary: • Identify • Circle • Determine strength • ROUND • Change leftovers to 0s Examples: Round 39,567,000 to nearest million: 39,567,000 ≈ 40,000,000 Round 4,367,633 to nearest thousand: 4,367,633 ≈ 4,368,000

  6. Practice… • Round 1760 to the nearest hundred. • Round 5489 to the nearest thousand. • Round 186,282 to the nearest ten thousand.

More Related