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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 919 · 40 questions
TalentJR

The fast method (Jump the point): Count the zeros: 10 → 1 jump, 100 → 2 jumps, 1000 → 3 jumps. × moves the point right; ÷ moves it left. Run out of digits? Fill the gaps with 0s. Drop 0s at the end of a decimal: 3.40 is 3.4.

NameDateTime takenScore ___ / 40
  1. 1.6.95 × 100 =
  2. 2.82.9 × 10 =
  3. 3.6.02 ÷ 1000 =
  4. 4.22.13 ÷ 1000 =
  5. 5.408.9 × 100 =
  6. 6.4.18 ÷ 1000 =
  7. 7.466.4 × 1000 =
  8. 8.41.32 ÷ 10 =
  9. 9.104.9 × 10 =
  10. 10.280.9 ÷ 1000 =
  11. 11.35.61 ÷ 10 =
  12. 12.14.12 ÷ 10 =
  13. 13.180.4 ÷ 100 =
  14. 14.300.8 × 10 =
  15. 15.12.97 × 1000 =
  16. 16.36.35 ÷ 100 =
  17. 17.10.89 ÷ 1000 =
  18. 18.474.9 × 100 =
  19. 19.14.91 ÷ 100 =
  20. 20.369.9 × 10 =
  21. 21.447.8 × 100 =
  22. 22.364.3 × 1000 =
  23. 23.37.69 ÷ 1000 =
  24. 24.36.6 ÷ 10 =
  25. 25.287.4 ÷ 10 =
  26. 26.6.92 × 10 =
  27. 27.5.55 ÷ 100 =
  28. 28.40.57 × 1000 =
  29. 29.24.73 × 100 =
  30. 30.357.6 × 1000 =
  31. 31.73.1 ÷ 100 =
  32. 32.413.5 × 100 =
  33. 33.221.1 ÷ 100 =
  34. 34.6.91 × 10 =
  35. 35.90.4 × 100 =
  36. 36.409.6 × 1000 =
  37. 37.20.18 ÷ 10 =
  38. 38.479.4 × 100 =
  39. 39.32.89 × 100 =
  40. 40.34.33 ÷ 10 =

Answer key

  1. 695
  2. 829
  3. 0.00602
  4. 0.02213
  5. 40890
  6. 0.00418
  7. 466400
  8. 4.132
  9. 1049
  10. 0.2809
  11. 3.561
  12. 1.412
  13. 1.804
  14. 3008
  15. 12970
  16. 0.3635
  17. 0.01089
  18. 47490
  19. 0.1491
  20. 3699
  21. 44780
  22. 364300
  23. 0.03769
  24. 3.66
  25. 28.74
  26. 69.2
  27. 0.0555
  28. 40570
  29. 2473
  30. 357600
  31. 0.731
  32. 41350
  33. 2.211
  34. 69.1
  35. 9040
  36. 409600
  37. 2.018
  38. 47940
  39. 3289
  40. 3.433

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