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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 495 · 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. 1.35.73 ÷ 1000 =
  2. 2.197.5 ÷ 100 =
  3. 3.43.36 ÷ 100 =
  4. 4.134.7 ÷ 100 =
  5. 5.63.3 × 10 =
  6. 6.10.11 × 10 =
  7. 7.360.2 ÷ 1000 =
  8. 8.11.12 × 10 =
  9. 9.307.1 × 1000 =
  10. 10.42.56 × 100 =
  11. 11.0.35 ÷ 1000 =
  12. 12.240.1 ÷ 10 =
  13. 13.10.54 ÷ 1000 =
  14. 14.26.08 × 10 =
  15. 15.424.8 × 10 =
  16. 16.13.79 × 10 =
  17. 17.11.22 × 100 =
  18. 18.137.2 ÷ 10 =
  19. 19.167.8 ÷ 100 =
  20. 20.16.88 ÷ 1000 =
  21. 21.31.21 ÷ 1000 =
  22. 22.470.9 ÷ 1000 =
  23. 23.491.3 × 10 =
  24. 24.56.3 × 1000 =
  25. 25.47.92 ÷ 100 =
  26. 26.71.1 ÷ 1000 =
  27. 27.7.98 × 100 =
  28. 28.191.2 ÷ 10 =
  29. 29.201.6 × 10 =
  30. 30.216.9 ÷ 100 =
  31. 31.300.4 ÷ 10 =
  32. 32.18.52 × 10 =
  33. 33.144.2 × 10 =
  34. 34.397.1 × 10 =
  35. 35.10.16 × 10 =
  36. 36.10.1 ÷ 100 =
  37. 37.27.08 × 10 =
  38. 38.396.5 ÷ 100 =
  39. 39.11.31 × 1000 =
  40. 40.15.24 × 10 =

Answer key

  1. 0.03573
  2. 1.975
  3. 0.4336
  4. 1.347
  5. 633
  6. 101.1
  7. 0.3602
  8. 111.2
  9. 307100
  10. 4256
  11. 0.00035
  12. 24.01
  13. 0.01054
  14. 260.8
  15. 4248
  16. 137.9
  17. 1122
  18. 13.72
  19. 1.678
  20. 0.01688
  21. 0.03121
  22. 0.4709
  23. 4913
  24. 56300
  25. 0.4792
  26. 0.0711
  27. 798
  28. 19.12
  29. 2016
  30. 2.169
  31. 30.04
  32. 185.2
  33. 1442
  34. 3971
  35. 101.6
  36. 0.101
  37. 270.8
  38. 3.965
  39. 11310
  40. 152.4

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