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5.3 Estimating Sums

5.3 Estimating Sums. Mental Math. Estimate the sums. Give a thumbs up if the sum is greater than 100. 52 + 49 37 + 54 21 + 47 + 68 Give a thumbs up if the sum is greater than 1,000. 786 + 293 865 + 439 125 + 239 + 353 673 + 314 + 249. Math Message.

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5.3 Estimating Sums

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  1. 5.3 Estimating Sums

  2. Mental Math Estimate the sums. Give a thumbs up if the sum is greater than 100. 52 + 49 37 + 54 21 + 47 + 68 Give a thumbs up if the sum is greater than 1,000. 786 + 293 865 + 439 125 + 239 + 353 673 + 314 + 249

  3. Math Message Solve the problems. Be ready to explain how you answered the questions.

  4. Math Message Follow-Up You can estimate because an exact answer is not necessary. Why is an exact answer not necessary?

  5. Examining a Travel Map

  6. Planning a Trip Let’s try estimating the distance from Birmingham to Jacksonville.

  7. Let’s Plan a Trip together…MJ Page 113

  8. Plan a trip with your partner…Solve problem 5 ALONE.

  9. Summing it UpEstimate the following sums.132 + 456 = _____Show Number Model: ___________________579 + 899 = _____Show Number Model: ___________________

  10. Tonight’s Homework

  11. Math Boxes

  12. Math Box Answers

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