Presentation is loading. Please wait.

Presentation is loading. Please wait.

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.

Similar presentations


Presentation on theme: "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."— 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


Download ppt "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."

Similar presentations


Ads by Google