1. Unit 2 Lesson 9 Part 2: Estimating Sums to the Nearest 100 Copyright © 2010 Kelly Mott

2. Unit 2 Lesson 9 Part 2: Estimating Sums to the Nearest 100 Copyright © 2010 Kelly Mott

3. Part 1: Review Estimating Sums to the Nearest Ten Copyright © 2010 Kelly Mott

4. Practice # 1: Round to the nearest ten. Estimate each sum. 37 _ _ 42 _ _ Copyright © 2010 Kelly Mott Steps: 1. Round each to the nearest 10. 2. Then add. ++ 63 _ _ 55 _ _ ++

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6. Part 2:Estimating Sums to the Nearest Hundred Copyright © 2010 Kelly Mott

7. Practice # 1: Round to the nearest 100. Estimate each sum. 532 _ _ _ 371 _ _ _ Copyright © 2010 Kelly Mott Steps: 1. Round each to the nearest 100. 2. Then add. ++ 183 _ _ _ 406 _ _ _ + +

8. Practice # 2: Round to the nearest 100. Estimate each sum. 229 _ _ _ 330 _ _ _ Copyright © 2010 Kelly Mott Steps: 1. Round each to the nearest 100. 2. Then add. ++ 450 _ _ _ 199 _ _ _ + +

9. Practice # 3: Round to the nearest 100. Estimate each sum. 645 _ _ _ 253 _ _ _ Copyright © 2010 Kelly Mott Steps: 1. Round each to the nearest 100. 2. Then add. ++ 561 _ _ _ 131 _ _ _ + +

10. Practice # 4: Round to the nearest 100. Estimate each sum. 151 _ _ _ 220 _ _ _ Copyright © 2010 Kelly Mott Steps: 1. Round each to the nearest 100. 2. Then add. ++ 293 _ _ _ 309 _ _ _ + +

11. Practice # 5: Round to the nearest 100. Estimate each sum. 757 _ _ _ 424 _ _ _ Copyright © 2010 Kelly Mott Steps: 1. Round each to the nearest 100. 2. Then add. ++ 436 _ _ _ 127 _ _ _ + +

12. Practice # 6: Round to the nearest 100. Estimate each sum. 305 _ _ _ 820 _ _ _ Copyright © 2010 Kelly Mott Steps: 1. Round each to the nearest 100. 2. Then add. ++ 616 _ _ _ 266 _ _ _ + +

13. Practice # 7: Round to the nearest 100. Estimate each sum. 916 _ _ _ 109 _ _ _ Copyright © 2010 Kelly Mott Steps: 1. Round each to the nearest 100. 2. Then add. ++ 370 _ _ _ 212 _ _ _ + +

14. Practice # 8: Round to the nearest 100. Estimate each sum. 459 _ _ _ 308 _ _ _ Copyright © 2010 Kelly Mott Steps: 1. Round each to the nearest 100. 2. Then add. ++ 170 _ _ _ 505 _ _ _ + +

15. Practice # 9: Round to the nearest 100. Estimate each sum. 333 _ _ _ 440 _ _ _ Copyright © 2010 Kelly Mott Steps: 1. Round each to the nearest 100. 2. Then add. ++ 818 _ _ _ 262 _ _ _ + +

16. Practice # 10: Round to the nearest 100. Estimate each sum. 521 _ _ _ 706 _ _ _ Copyright © 2010 Kelly Mott Steps: 1. Round each to the nearest 100. 2. Then add. ++ 666 _ _ _ 217 _ _ _ + +

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18. Does this make sense? Copyright © 2010 Kelly Mott

19. HOMEWORK Teacher Worksheet: Estimate Sums to Nearest 10 Math Steps Pages: none Re-teach Page: 74 Copyright © 2010 Kelly Mott