1 / 3

Estimating Fraction Sums & Differences

Estimating Fraction Sums & Differences. Textbook page 236 IAN page 68. What amounts do we round fractions to? When do we round fractions to 0? When do we round fractions to ½? When do we round fractions to 1?. We round fractions to: 0, ½, or 1 If the numerator is a lot les than

masato
Download Presentation

Estimating Fraction Sums & Differences

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. Estimating Fraction Sums & Differences Textbook page 236 IAN page 68

  2. What amounts do we round fractions to?When do we round fractions to 0?When do we round fractions to ½? When do we round fractions to 1? We round fractions to: 0, ½, or 1 If the numerator is a lot les than half the denominator, we round to 0. (ex: 1/5, 2/11, 4/15) If the numerator is about half of the denominator we round to ½. (ex: 5/11, 4/7, 9/20) If the numerator and the denominator are about the same number we round to 1. (ex: 9/10, 16/19, 6/7)

  3. Example:Estimate each sum or difference • 8/9 + 2/11 1 + 0 1 (B) 7/12 – 8/15 ½ - ½ 0

More Related