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4-6 Estimating Products

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• 4-6 Estimating Products

1. 1. 4-6 Estimating Products Math Notes Number Sense 1.1
2. 2. Skills needed...60 x 1 = 6060 x 1 = 6060 x 1 = 6060 x 1 = 60
3. 3. Skills needed...60 x 1 = 6060 x 10 = 60 060 x 100 = 600060 x 1000 = 600 00
4. 4. Skills needed...
5. 5. Skills needed... 700X 60
6. 6. Skills needed... 3 zeros 700X 60
7. 7. Skills needed... 3 zeros 700X 60 000
8. 8. Skills needed... 3 zeros 700X 60 42,000
9. 9. Skills needed... 3 zeros 700X 60 42,000 80 X 70
10. 10. Skills needed... 3 zeros 700X 60 42,000 2 zeros 80 X 70
11. 11. Skills needed... 3 zeros 700X 60 42,000 2 zeros 80 X 70 00
12. 12. Skills needed... 3 zeros 700X 60 42,000 2 zeros 80 X 70 56 00
13. 13. Estimate \$187 x 18
14. 14. Estimate \$187 x 18 \$187 x 18
15. 15. Estimate \$187 x 18Round each number to the greatest place. \$187 x 18
16. 16. Estimate \$187 x 18 Round each number to the greatest place.STEP ONE: Round \$187to the nearest hundred \$187 x 18
17. 17. Estimate \$187 x 18 Round each number to the greatest place.STEP ONE: Round \$187to the nearest hundred \$187 x 18
18. 18. Estimate \$187 x 18 Round each number to the greatest place.STEP ONE: Round \$187to the nearest hundred \$187 x 18
19. 19. Estimate \$187 x 18 Round each number to the greatest place.STEP ONE: Round \$187to the nearest hundred1 2 3 4 5 6 7 8 \$187 x 180 9
20. 20. Estimate \$187 x 18 Round each number to the greatest place.STEP ONE: Round \$187to the nearest hundred1 2 3 4 5 6 7 8 \$187 x 180 9
21. 21. Estimate \$187 x 18 Round each number to the greatest place.STEP ONE: Round \$187to the nearest hundred1 2 3 4 5 6 7 8 \$187 x 180 9 \$200
22. 22. Estimate \$187 x 18 Round each number to the greatest place.STEP ONE: Round \$187 STEP TWO: Round 18 toto the nearest hundred the nearest ten1 2 3 4 5 6 7 8 \$187 x 180 9 \$200
23. 23. Estimate \$187 x 18 Round each number to the greatest place.STEP ONE: Round \$187 STEP TWO: Round 18 toto the nearest hundred the nearest ten1 2 3 4 5 6 7 8 \$187 x 180 9 \$200
24. 24. Estimate \$187 x 18 Round each number to the greatest place.STEP ONE: Round \$187 STEP TWO: Round 18 toto the nearest hundred the nearest ten1 2 3 4 5 6 7 8 \$187 x 180 9 \$200
25. 25. Estimate \$187 x 18 Round each number to the greatest place.STEP ONE: Round \$187 STEP TWO: Round 18 toto the nearest hundred the nearest ten1 2 3 4 5 6 7 8 \$187 x 18 1 0 2 3 4 5 6 7 80 9 9 \$200
26. 26. Estimate \$187 x 18 Round each number to the greatest place.STEP ONE: Round \$187 STEP TWO: Round 18 toto the nearest hundred the nearest ten1 2 3 4 5 6 7 8 \$187 x 18 1 0 2 3 4 5 6 7 80 9 9 \$200
27. 27. Estimate \$187 x 18 Round each number to the greatest place.STEP ONE: Round \$187 STEP TWO: Round 18 toto the nearest hundred the nearest ten1 2 3 4 5 6 7 8 \$187 x 18 1 0 2 3 4 5 6 7 80 9 9 \$200 20
28. 28. Estimate \$187 x 18 Round each number to the greatest place.STEP ONE: Round \$187 STEP TWO: Round 18 toto the nearest hundred the nearest ten1 2 3 4 5 6 7 8 \$187 x 18 1 0 2 3 4 5 6 7 80 9 9 \$200 x 20 STEP THREE: Multiply using mental math
29. 29. Estimate \$187 x 18 Round each number to the greatest place.STEP ONE: Round \$187 STEP TWO: Round 18 toto the nearest hundred the nearest ten1 2 3 4 5 6 7 8 \$187 x 18 1 0 2 3 4 5 6 7 80 9 9 \$200 x 20 =\$4000 STEP THREE: Multiply using mental math
30. 30. Estimate 147 x 353
31. 31. Estimate 147 x 353 147 x 353
32. 32. Estimate 147 x 353Round each number to the greatest place. 147 x 353
33. 33. Estimate 147 x 353 Round each number to the greatest place.STEP ONE: Round 147 to the nearest hundred 147 x 353
34. 34. Estimate 147 x 353 Round each number to the greatest place.STEP ONE: Round 147 to the nearest hundred 147 x 353
35. 35. Estimate 147 x 353 Round each number to the greatest place.STEP ONE: Round 147 to the nearest hundred 147 x 353
36. 36. Estimate 147 x 353 Round each number to the greatest place.STEP ONE: Round 147 to the nearest hundred1 2 3 4 5 6 7 8 147 x 3530 9
37. 37. Estimate 147 x 353 Round each number to the greatest place.STEP ONE: Round 147 to the nearest hundred1 2 3 4 5 6 7 8 147 x 3530 9
38. 38. Estimate 147 x 353 Round each number to the greatest place.STEP ONE: Round 147 to the nearest hundred1 2 3 4 5 6 7 8 147 x 3530 9 100
39. 39. Estimate 147 x 353 Round each number to the greatest place.STEP ONE: Round 147 to STEP TWO: Round 353 to the nearest hundred the nearest hundred1 2 3 4 5 6 7 8 147 x 3530 9 100
40. 40. Estimate 147 x 353 Round each number to the greatest place.STEP ONE: Round 147 to STEP TWO: Round 353 to the nearest hundred the nearest hundred1 2 3 4 5 6 7 8 147 x 3530 9 100
41. 41. Estimate 147 x 353 Round each number to the greatest place.STEP ONE: Round 147 to STEP TWO: Round 353 to the nearest hundred the nearest hundred1 2 3 4 5 6 7 8 147 x 3530 9 100
42. 42. Estimate 147 x 353 Round each number to the greatest place.STEP ONE: Round 147 to STEP TWO: Round 353 to the nearest hundred the nearest hundred1 2 3 4 5 6 7 8 147 x 353 1 0 2 3 4 5 6 7 80 9 9 100
43. 43. Estimate 147 x 353 Round each number to the greatest place.STEP ONE: Round 147 to STEP TWO: Round 353 to the nearest hundred the nearest hundred1 2 3 4 5 6 7 8 147 x 353 1 0 2 3 4 5 6 7 80 9 9 100
44. 44. Estimate 147 x 353 Round each number to the greatest place.STEP ONE: Round 147 to STEP TWO: Round 353 to the nearest hundred the nearest hundred1 2 3 4 5 6 7 8 147 x 353 1 0 2 3 4 5 6 7 80 9 9 100 400
45. 45. Estimate 147 x 353 Round each number to the greatest place.STEP ONE: Round 147 to STEP TWO: Round 353 to the nearest hundred the nearest hundred1 2 3 4 5 6 7 8 147 x 353 1 0 2 3 4 5 6 7 80 9 9 100 x 400 STEP THREE: Multiply using mental math
46. 46. Estimate 147 x 353 Round each number to the greatest place.STEP ONE: Round 147 to STEP TWO: Round 353 to the nearest hundred the nearest hundred1 2 3 4 5 6 7 8 147 x 353 1 0 2 3 4 5 6 7 80 9 9 100 x 400 = 40000 STEP THREE: Multiply using mental math
47. 47. Estimate \$27.54 x 47
48. 48. Estimate \$27.54 x 47\$27.54 x 47
49. 49. Estimate \$27.54 x 47Round each number to the greatest place. \$27.54 x 47
50. 50. Estimate \$27.54 x 47 Round each number to the greatest place.STEP ONE: Round \$27.54 to the nearest tens. \$27.54 x 47
51. 51. Estimate \$27.54 x 47 Round each number to the greatest place.STEP ONE: Round \$27.54 to the nearest tens. \$27.54 x 47
52. 52. Estimate \$27.54 x 47 Round each number to the greatest place.STEP ONE: Round \$27.54 to the nearest tens. \$27.54 x 47
53. 53. Estimate \$27.54 x 47 Round each number to the greatest place. STEP ONE: Round \$27.54 to the nearest tens.1 2 3 4 5 6 7 \$27.54 x 47 80 9
54. 54. Estimate \$27.54 x 47 Round each number to the greatest place. STEP ONE: Round \$27.54 to the nearest tens.1 2 3 4 5 6 7 \$27.54 x 47 80 9
55. 55. Estimate \$27.54 x 47 Round each number to the greatest place. STEP ONE: Round \$27.54 to the nearest tens.1 2 3 4 5 6 7 \$27.54 x 47 80 9 \$30
56. 56. Estimate \$27.54 x 47 Round each number to the greatest place. STEP ONE: Round \$27.54 STEP TWO: Round 47 to to the nearest tens. the nearest ten1 2 3 4 5 6 7 \$27.54 x 47 80 9 \$30
57. 57. Estimate \$27.54 x 47 Round each number to the greatest place. STEP ONE: Round \$27.54 STEP TWO: Round 47 to to the nearest tens. the nearest ten1 2 3 4 5 6 7 \$27.54 x 47 80 9 \$30
58. 58. Estimate \$27.54 x 47 Round each number to the greatest place. STEP ONE: Round \$27.54 STEP TWO: Round 47 to to the nearest tens. the nearest ten1 2 3 4 5 6 7 \$27.54 x 47 80 9 \$30
59. 59. Estimate \$27.54 x 47 Round each number to the greatest place. STEP ONE: Round \$27.54 STEP TWO: Round 47 to to the nearest tens. the nearest ten1 2 3 4 5 6 7 \$27.54 x 47 1 0 2 3 4 5 6 7 8 8 90 9 \$30
60. 60. Estimate \$27.54 x 47 Round each number to the greatest place. STEP ONE: Round \$27.54 STEP TWO: Round 47 to to the nearest tens. the nearest ten1 2 3 4 5 6 7 \$27.54 x 47 1 0 2 3 4 5 6 7 8 8 90 9 \$30
61. 61. Estimate \$27.54 x 47 Round each number to the greatest place. STEP ONE: Round \$27.54 STEP TWO: Round 47 to to the nearest tens. the nearest ten1 2 3 4 5 6 7 \$27.54 x 47 1 0 2 3 4 5 6 7 8 8 90 9 \$30 50
62. 62. Estimate \$27.54 x 47 Round each number to the greatest place. STEP ONE: Round \$27.54 STEP TWO: Round 47 to to the nearest tens. the nearest ten1 2 3 4 5 6 7 \$27.54 x 47 1 0 2 3 4 5 6 7 8 8 90 9 \$30 x 50 STEP THREE: Multiply using mental math
63. 63. Estimate \$27.54 x 47 Round each number to the greatest place. STEP ONE: Round \$27.54 STEP TWO: Round 47 to to the nearest tens. the nearest ten1 2 3 4 5 6 7 \$27.54 x 47 1 0 2 3 4 5 6 7 8 8 90 9 \$30 x 50 =\$1500 STEP THREE: Multiply using mental math