'Actual sum' presentation slideshows

Lec 19, Ch.17, pp.453-461: Sample simple timing problems (Objectives)

290 views • 15 slides

3-4: Estimating Sums and Differences

3-4: Estimating Sums and Differences. Rounding Clustering Front-end-estimating . Rounding. Most of the time, you will be asked to round to the nearest whole number. Round to the ones place, and drop the decimal part of your number. Example: Estimate the sum of 10.93 and 3.25. 11.

470 views • 7 slides

Estimating Sums and Differences

Estimating Sums and Differences. Rounding Clustering Front-end-estimating. Rounding. Most of the time, you will be asked to round to the nearest whole number. Round to the ones place, and drop the decimal part of your number. Example: Estimate the sum of 10.93 and 3.25. 11. 11.00.

121 views • 6 slides

Comparing Equations

Comparing Equations . Addition and Subtraction By: Stacy L. Weber. 54+62 ___ 44+72 116 = 116 Think 44 is ten less than 54 but 72 is 10 more than 62. 25+89 ___ 28+91 114 < 119

133 views • 5 slides

Lesson 3-4 Example 2

3-4. Example 2. Lesson 3-4 Example 2. Estimate the sum of 2,564 and 4,877. Then find the actual sum. 1. What is the greatest place value of the numbers?. thousands. 3-4. Example 2. Lesson 3-4 Example 2. Estimate the sum of 2,564 and 4,877. Then find the actual sum.

147 views • 4 slides