Teachers, save “Estimating Sums by Rounding” to assign it to your class.

1. Click on the green add button. 2. Use the label and drawing tools to find two estimated sums, the actual sum, and to answer the question of which is more precise. Use the blank white space as your workspace. 3. Use the mic to record yourself describing how you answered each question. 4. Double check your work to make sure it is your best work! 5. Click on the green check to post to your journal. :)