Download presentation

Presentation is loading. Please wait.

Published byWeston Guard Modified over 7 years ago

1
Chapter 3 L3-4 Notes: Estimating Sums & Differences

2
Rounding Estimate by rounding each decimal to the nearest whole number, then add the digits. Example:60.7 + 68.5

3
On Your Own… a. 49.59 + 16.22 = b. $41.59 - $19.72 = c. 2.33 + 4.88 + 5.88 =

4
Front-End Estimation To use front-end estimation, add or subtract the front digits. (Front digits are digits before the decimal). Example: 34.6 + 55.3

5
On Your Own… a. 22.35b. 5.45c. $37.92 - 11.14 + 0.57 - $21.62

6
Clustering Estimate by rounding a group of close numbers to the same number. Example: 72.50 68.50 69.75 71.75 +

7
On Your Own… a. 6.99 + 6.59 + 7.02 + 7.44 b. $3.33 + $3.45 + $2.78 + $ 2.99 c. 5.45 + 5.3948 + 4.7999

Similar presentations

© 2022 SlidePlayer.com Inc.

All rights reserved.

To make this website work, we log user data and share it with processors. To use this website, you must agree to our Privacy Policy, including cookie policy.

Ads by Google