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Estimating

Estimating. Rounding. Rounding. 486,628. If the number next door is 5 or more, we add 1 more. Round to the nearest ten thousand. hundred thousands. hundred millions. ten thousands. ten millions. hundreds. thousands. millions. tens. ones. 42,632. 42,600 42,700 43,000

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Estimating

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  1. Estimating Rounding

  2. Rounding 486,628 If the number next door is 5 or more, we add 1 more. Round to the nearest ten thousand.

  3. hundred thousands hundred millions ten thousands ten millions hundreds thousands millions tens ones 42,632 • 42,600 • 42,700 • 43,000 • 40,000 Round to the nearest hundred.

  4. hundred thousands hundred millions ten thousands ten millions hundreds thousands millions tens ones 24,632 • 24,600 • 24,700 • 25,000 • 20,000 Round to the nearest greatest place.

  5. To estimate sums, we first round the numbers to make them easier to work with. 600 638 492 115 + 375 500 100 400

  6. Estimate: 863 294 511 + 735 • 13,600 • 12,700 • 14,000 • 15,000

  7. Estimate: 544 961 118 5480 + 543 • 7,100 • 7,500 • 6,400 • 6,800

  8. Estimate: 729 768 9,081 + 4,347 • 14,000 • 14,500 • 15,400 • 15,800

  9. Estimate: 77 584 5,356 + 4,578 • 11,000 • 9,500 • 10,000 • 10,680

  10. Estimate: 232 200 1,321 2,364 + 2,983 • 6,400 • 6,000 • 7,100 • 6,680

  11. Estimate: 992 193 1,747 9,524 + 3,496 • 14,400 • 15,000 • 15,952 • 16,200

  12. Estimate: 91.007 + 4.8 • 93 • 94 • 95 • 96

  13. Estimate: 82.992 + 49.194 • 122 • 131 • 132 • 133

  14. Estimate: 39.76 + 21.1 • 60 • 61 • 60.86 • 50

  15. Estimate: 34.75 + 7.4 • 41 • 42 • 43 • 44

  16. Estimate: 43.008 - 6.5 • 36 • 37 • 43 • 44

  17. Estimate: 52.29 - 8.735 • 43 • 44 • 56 • 57

  18. Estimate: 8.023 - 2.5 • 10 • 6 • 5 • 4

  19. Estimate: 9.69 - 6.33 • 15 • 10 • 4 • 3

  20. Estimate: 48.08 - 7.402 • 40 • 41 • 54 • 55

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