1. 5.3 Estimating Sums

2. Mental Math
Estimate the sums.
Give a thumbs up if the sum is greater than 100.
Give a thumbs up if the sum is greater than 1,000.

3. Solve the problems. Be ready to explain how you
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 Up Estimate the following sums
Summing it Up Estimate the following sums = _____ Show Number Model: ___________________ = _____ Show Number Model: ___________________

10. Tonight’s Homework

11. Math Boxes

12. Math Box Answers