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1-6 Rounding Whole Numbers/Decimals

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• Transcript of "1-6 Rounding Whole Numbers/Decimals"

1. 1. 1-6 Rounding Whole Numbers & Decimals Math Notes Number Sense 1.1
2. 2. Review 23,568.471
3. 3. Review 23,568.471 Tell what digit is in each given place.
4. 4. Review 23,568.471 Tell what digit is in each given place. tens
5. 5. Review 23,568.471 Tell what digit is in each given place. tens tenths
6. 6. Review 23,568.471 Tell what digit is in each given place. tens tenths hundreds
7. 7. Review 23,568.471 Tell what digit is in each given place. tens tenths hundreds hundredths
8. 8. Review 23,568.471 Tell what digit is in each given place. tens tenths hundreds hundredths thousands
9. 9. Review 23,568.471 Tell what digit is in each given place. tens tenths hundreds hundredths thousands thousandths
10. 10. Review 23,568.471 Tell what digit is in each given place. tens 6 tenths hundreds hundredths thousands thousandths
11. 11. Review 23,568.471 Tell what digit is in each given place. tens 6 tenths 4 hundreds hundredths thousands thousandths
12. 12. Review 23,568.471 Tell what digit is in each given place. tens 6 tenths 4 hundreds 5 hundredths thousands thousandths
13. 13. Review 23,568.471 Tell what digit is in each given place. tens 6 tenths 4 hundreds 5 hundredths 7 thousands thousandths
14. 14. Review 23,568.471 Tell what digit is in each given place. tens 6 tenths 4 hundreds 5 hundredths 7 thousands 3 thousandths
15. 15. Review 23,568.471 Tell what digit is in each given place. tens 6 tenths 4 hundreds 5 hundredths 7 thousands 3 thousandths 1
16. 16. 3,840 Round 3,840 to the nearest hundred.
17. 17. 3,840 Round 3,840 to the nearest hundred. STEP ONE: Find the hundreds place.
18. 18. 3,840 Round 3,840 to the nearest hundred. STEP ONE: Find the hundreds place.
19. 19. 3,840 Round 3,840 to the nearest hundred. STEP ONE: Find the hundreds place. STEP TWO: Look at the digit to the RIGHT.
20. 20. 3,840 Round 3,840 to the nearest hundred. STEP ONE: Find the hundreds place. STEP TWO: Look at the digit to the RIGHT.
21. 21. 3,840 Round 3,840 to the nearest hundred. STEP ONE: Find the hundreds place. STEP TWO: Look at the digit to the RIGHT. STEP THREE: Determine if you Round Up or Down.
22. 22. 0-4 Round DOWN 3,840 underlined digit stays the same. Round 3,840 to the nearest hundred. STEP ONE: Find the hundreds place. STEP TWO: Look at the digit to the RIGHT. STEP THREE: Determine if you Round Up or Down.
23. 23. 0-4 5-9 Round DOWN Round UP 3,840 underlined Add ONE to the digit stays underlined digit. the same. Round 3,840 to the nearest hundred. STEP ONE: Find the hundreds place. STEP TWO: Look at the digit to the RIGHT. STEP THREE: Determine if you Round Up or Down.
24. 24. 0-4 5-9 Round DOWN Round UP 3,840 underlined Add ONE to the digit stays underlined digit. the same. Round 3,840 to the nearest hundred. STEP ONE: Find the hundreds place. STEP TWO: Look at the digit to the RIGHT. STEP THREE: Determine if you Round Up or Down. 3,840
25. 25. 0-4 5-9 Round DOWN Round UP 3,840 underlined Add ONE to the digit stays underlined digit. the same. Round 3,840 to the nearest hundred. STEP ONE: Find the hundreds place. STEP TWO: Look at the digit to the RIGHT. STEP THREE: Determine if you Round Up or Down. 3,840
26. 26. 0-4 5-9 Round DOWN Round UP 3,840 underlined Add ONE to the digit stays underlined digit. the same. Round 3,840 to the nearest hundred. STEP ONE: Find the hundreds place. STEP TWO: Look at the digit to the RIGHT. STEP THREE: Determine if you Round Up or Down. Underlined # 3,840 and the # before stays the same.
27. 27. 0-4 5-9 Round DOWN Round UP 3,840 underlined Add ONE to the digit stays underlined digit. the same. Round 3,840 to the nearest hundred. STEP ONE: Find the hundreds place. STEP TWO: Look at the digit to the RIGHT. STEP THREE: Determine if you Round Up or Down. Underlined # 3,840 and the # before stays the same. 8
28. 28. 0-4 5-9 Round DOWN Round UP 3,840 underlined Add ONE to the digit stays underlined digit. the same. Round 3,840 to the nearest hundred. STEP ONE: Find the hundreds place. STEP TWO: Look at the digit to the RIGHT. STEP THREE: Determine if you Round Up or Down. Underlined # 3,840 and the # before stays the same. 3,8
29. 29. 0-4 5-9 Round DOWN Round UP 3,840 underlined Add ONE to the digit stays underlined digit. the same. Round 3,840 to the nearest hundred. STEP ONE: Find the hundreds place. STEP TWO: Look at the digit to the RIGHT. STEP THREE: Determine if you Round Up or Down. Underlined # 3,840 The #s after and the # before becomes zeroes. stays the same. 3,8
30. 30. 0-4 5-9 Round DOWN Round UP 3,840 underlined Add ONE to the digit stays underlined digit. the same. Round 3,840 to the nearest hundred. STEP ONE: Find the hundreds place. STEP TWO: Look at the digit to the RIGHT. STEP THREE: Determine if you Round Up or Down. Underlined # 3,840 The #s after and the # before becomes zeroes. stays the same. 3,800
31. 31. Here’s why...
32. 32. Here’s why... Round 3,840 to the nearest hundred.
33. 33. Here’s why... Round 3,840 to the nearest hundred. halfway 3,800 3,900
34. 34. Here’s why... Round 3,840 to the nearest hundred. 3,840 halfway 3,800 3,900
35. 35. Here’s why... Round 3,840 to the nearest hundred. 3,840 halfway 3,800 3,900 Is 3,840 closer to 3,800 or 3,900?
36. 36. Here’s why... Round 3,840 to the nearest hundred. 3,840 halfway 3,800 3,900 Is 3,840 closer to 3,800 or 3,900? That’s why we round 3,840 to 3,800.
37. 37. 56.08 Round 56.08 to the nearest tenth.
38. 38. 56.08 Round 56.08 to the nearest tenth. STEP ONE: Find the tenths place.
39. 39. 56.08 Round 56.08 to the nearest tenth. STEP ONE: Find the tenths place.
40. 40. 56.08 Round 56.08 to the nearest tenth. STEP ONE: Find the tenths place. STEP TWO: Look at the digit to the RIGHT.
41. 41. 56.08 Round 56.08 to the nearest tenth. STEP ONE: Find the tenths place. STEP TWO: Look at the digit to the RIGHT.
42. 42. 56.08 Round 56.08 to the nearest tenth. STEP ONE: Find the tenths place. STEP TWO: Look at the digit to the RIGHT. STEP THREE: Determine if you Round Up or Down.
43. 43. 0-4 Round DOWN 56.08 underlined digit stays the same. Round 56.08 to the nearest tenth. STEP ONE: Find the tenths place. STEP TWO: Look at the digit to the RIGHT. STEP THREE: Determine if you Round Up or Down.
44. 44. 0-4 5-9 Round DOWN Round UP 56.08 underlined Add ONE to the digit stays underlined digit. the same. Round 56.08 to the nearest tenth. STEP ONE: Find the tenths place. STEP TWO: Look at the digit to the RIGHT. STEP THREE: Determine if you Round Up or Down.
45. 45. 0-4 5-9 Round DOWN Round UP 56.08 underlined Add ONE to the digit stays underlined digit. the same. Round 56.08 to the nearest tenth. STEP ONE: Find the tenths place. STEP TWO: Look at the digit to the RIGHT. STEP THREE: Determine if you Round Up or Down. 56.08
46. 46. 0-4 5-9 Round DOWN Round UP 56.08 underlined Add ONE to the digit stays underlined digit. the same. Round 56.08 to the nearest tenth. STEP ONE: Find the tenths place. STEP TWO: Look at the digit to the RIGHT. STEP THREE: Determine if you Round Up or Down. Add 1 to the 56.08 underlined # and the #s before stays the same.
47. 47. 0-4 5-9 Round DOWN Round UP 56.08 underlined Add ONE to the digit stays underlined digit. the same. Round 56.08 to the nearest tenth. STEP ONE: Find the tenths place. STEP TWO: Look at the digit to the RIGHT. STEP THREE: Determine if you Round Up or Down. Add 1 to the 56.08 underlined # and the #s before stays the same.
48. 48. 0-4 5-9 Round DOWN Round UP 56.08 underlined Add ONE to the digit stays underlined digit. the same. Round 56.08 to the nearest tenth. STEP ONE: Find the tenths place. STEP TWO: Look at the digit to the RIGHT. STEP THREE: Determine if you Round Up or Down. Add 1 to the 56.08 underlined # 1 and the #s before stays the same.
49. 49. 0-4 5-9 Round DOWN Round UP 56.08 underlined Add ONE to the digit stays underlined digit. the same. Round 56.08 to the nearest tenth. STEP ONE: Find the tenths place. STEP TWO: Look at the digit to the RIGHT. STEP THREE: Determine if you Round Up or Down. Add 1 to the 56.08 underlined # and the #s before stays the same. 56. 1
50. 50. 0-4 5-9 Round DOWN Round UP 56.08 underlined Add ONE to the digit stays underlined digit. the same. Round 56.08 to the nearest tenth. STEP ONE: Find the tenths place. STEP TWO: Look at the digit to the RIGHT. STEP THREE: Determine if you Round Up or Down. Add 1 to the 56.08 The #s after underlined # becomes zeroes. and the #s before stays the same. 56. 1
51. 51. 0-4 5-9 Round DOWN Round UP 56.08 underlined Add ONE to the digit stays underlined digit. the same. Round 56.08 to the nearest tenth. STEP ONE: Find the tenths place. STEP TWO: Look at the digit to the RIGHT. STEP THREE: Determine if you Round Up or Down. Add 1 to the 56.08 The #s after underlined # becomes zeroes. and the #s before stays the same. 56. 10
52. 52. Here’s why...
53. 53. Here’s why... Round 56.08 to the nearest hundred.
54. 54. Here’s why... Round 56.08 to the nearest hundred. halfway 56.00 56.10
55. 55. Here’s why... Round 56.08 to the nearest hundred. 56.08 halfway 56.00 56.10
56. 56. Here’s why... Round 56.08 to the nearest hundred. 56.08 halfway 56.00 56.10 Is 56.08 closer to 56.00 or 56.10?
57. 57. Here’s why... Round 56.08 to the nearest hundred. 56.08 halfway 56.00 56.10 Is 56.08 closer to 56.00 or 56.10? That’s why we round 56.08 to 56.10.
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