1. 1-6 Rounding Whole
Numbers & Decimals
Math Notes
Number Sense 1.1

2. Review
23,568.471

3. Review
23,568.471
Tell what digit is in each given place.

4. Review
23,568.471
Tell what digit is in each given place.
tens

5. Review
23,568.471
Tell what digit is in each given place.
tens
tenths

6. Review
23,568.471
Tell what digit is in each given place.
tens
tenths
hundreds

7. Review
23,568.471
Tell what digit is in each given place.
tens
tenths
hundreds
hundredths

8. Review
23,568.471
Tell what digit is in each given place.
tens
tenths
hundreds
hundredths
thousands

9. Review
23,568.471
Tell what digit is in each given place.
tens
tenths
hundreds
hundredths
thousands
thousandths

10. Review
23,568.471
Tell what digit is in each given place.
tens 6
tenths
hundreds
hundredths
thousands
thousandths

11. Review
23,568.471
Tell what digit is in each given place.
tens 6
tenths 4
hundreds
hundredths
thousands
thousandths

12. Review
23,568.471
Tell what digit is in each given place.
tens 6
tenths 4
hundreds 5
hundredths
thousands
thousandths

13. Review
23,568.471
Tell what digit is in each given place.
tens 6
tenths 4
hundreds 5
hundredths 7
thousands
thousandths

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. 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. 3,840
Round 3,840 to the nearest hundred.

17. 3,840
Round 3,840 to the nearest hundred.
STEP ONE: Find the hundreds place.

18. 3,840
Round 3,840 to the nearest hundred.
STEP ONE: Find the hundreds place.

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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. Here’s why...

32. Here’s why...
Round 3,840 to the nearest hundred.

33. Here’s why...
Round 3,840 to the nearest hundred.
halfway
3,800 3,900

34. Here’s why...
Round 3,840 to the nearest hundred.
3,840
halfway
3,800 3,900

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. 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. 56.08
Round 56.08 to the nearest tenth.

38. 56.08
Round 56.08 to the nearest tenth.
STEP ONE: Find the tenths place.

39. 56.08
Round 56.08 to the nearest tenth.
STEP ONE: Find the tenths place.

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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. 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. Here’s why...

53. Here’s why...
Round 56.08 to the nearest hundred.

54. Here’s why...
Round 56.08 to the nearest hundred.
halfway
56.00 56.10

55. Here’s why...
Round 56.08 to the nearest hundred.
56.08
halfway
56.00 56.10

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. 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.