← Decimal point jumps lesson New set →

Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 605 · 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. 1.12.17 × 10 =
  2. 2.44.6 × 100 =
  3. 3.27.51 × 100 =
  4. 4.151.5 × 1000 =
  5. 5.284.7 × 10 =
  6. 6.124.5 ÷ 10 =
  7. 7.0.12 ÷ 10 =
  8. 8.24.3 ÷ 1000 =
  9. 9.81.2 ÷ 100 =
  10. 10.31.4 × 100 =
  11. 11.64.2 ÷ 10 =
  12. 12.1.22 ÷ 1000 =
  13. 13.87.9 × 1000 =
  14. 14.154.9 ÷ 100 =
  15. 15.20.18 ÷ 1000 =
  16. 16.1.61 ÷ 10 =
  17. 17.40.4 × 10 =
  18. 18.27.55 ÷ 100 =
  19. 19.398.3 ÷ 1000 =
  20. 20.111.5 × 10 =
  21. 21.29.68 × 100 =
  22. 22.314.3 ÷ 100 =
  23. 23.286.3 × 100 =
  24. 24.194.9 × 10 =
  25. 25.12.95 × 100 =
  26. 26.48.41 × 10 =
  27. 27.81.3 × 10 =
  28. 28.288.9 ÷ 10 =
  29. 29.96.3 × 10 =
  30. 30.315.2 × 10 =
  31. 31.146.5 ÷ 1000 =
  32. 32.9.1 × 100 =
  33. 33.127.7 ÷ 100 =
  34. 34.48.41 ÷ 10 =
  35. 35.353.1 × 1000 =
  36. 36.354.7 × 100 =
  37. 37.77.9 ÷ 1000 =
  38. 38.62.1 × 10 =
  39. 39.40.45 × 1000 =
  40. 40.439.8 × 100 =

Answer key

  1. 121.7
  2. 4460
  3. 2751
  4. 151500
  5. 2847
  6. 12.45
  7. 0.012
  8. 0.0243
  9. 0.812
  10. 3140
  11. 6.42
  12. 0.00122
  13. 87900
  14. 1.549
  15. 0.02018
  16. 0.161
  17. 404
  18. 0.2755
  19. 0.3983
  20. 1115
  21. 2968
  22. 3.143
  23. 28630
  24. 1949
  25. 1295
  26. 484.1
  27. 813
  28. 28.89
  29. 963
  30. 3152
  31. 0.1465
  32. 910
  33. 1.277
  34. 4.841
  35. 353100
  36. 35470
  37. 0.0779
  38. 621
  39. 40450
  40. 43980

Free speed calculation lessons, practice and worksheets at talentjr.in/speed-maths