1 / 7

Estimating Sums and Differences

Estimating Sums and Differences. Can you estimate the answers to these math problems?. 6/7 - 1/3 11/12 + 4/7 1/9 + 5/8 Work with a partner to determine the estimated answer for each of these problems. Be prepared to explain how you got your answer!.

sevilen-osman
Télécharger la présentation

Estimating Sums and 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 Sums and Differences

  2. Can you estimate the answers to these math problems? • 6/7 - 1/3 • 11/12 + 4/7 • 1/9 + 5/8 • Work with a partner to determine the estimated answer for each of these problems. Be prepared to explain how you got your answer!

  3. What do you do?(Yes, write these notes in your journal) • Estimate the fractions • Step 1 • Look at the first fraction • Round it to the nearest 0, 1/2, or 1 • Step 2 • Look at the second fraction • Round it to the nearest 0, 1/2, or 1 • Step 3 • Add the rounded fractions to get an estimated answer

  4. Create the QUESTION! • Help, help! An error has been made. The publishers of the math program forgot to write the questions to a test! They only remembered to print the answers in the teacher’s guide. • Can you create challenging questions, based on logical thinking and high caliber math skills, for the answers provided? • (Extra points for especially creative answers…)

  5. Sample • Answer = about 4 hours • Question = Thad practiced playing the flute for 1 and 3/4 hours before dinner and 2 and 1/8 hours after dinner. About how long did Thad practice playing his flute?

  6. Create the QUESTION! • Answer = about 3 1/2 miles • Answer = about 15 feet of wire • Answer = about 7 1/2 yards of ribbon • Answer = about 12 gallons

  7. Create the QUESTION! • Answer = about 3 cups of flour • Answer = about 4 hours • Answer = about 5 1/2 inches

More Related