← Decimal point jumps lesson New set →

Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 205 · 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. 1.44.48 ÷ 10 =
  2. 2.163.5 ÷ 10 =
  3. 3.8.23 ÷ 10 =
  4. 4.27.8 × 1000 =
  5. 5.24.85 ÷ 1000 =
  6. 6.149.6 ÷ 1000 =
  7. 7.128.4 ÷ 10 =
  8. 8.21.03 × 10 =
  9. 9.222.5 × 1000 =
  10. 10.475.4 ÷ 100 =
  11. 11.237.5 × 100 =
  12. 12.19.3 ÷ 10 =
  13. 13.414.5 ÷ 1000 =
  14. 14.17.74 ÷ 10 =
  15. 15.22.01 × 1000 =
  16. 16.5.42 × 100 =
  17. 17.110.5 × 10 =
  18. 18.25.01 × 1000 =
  19. 19.29.11 ÷ 100 =
  20. 20.279.1 ÷ 10 =
  21. 21.13.22 × 10 =
  22. 22.335.5 × 10 =
  23. 23.424.8 × 1000 =
  24. 24.68.6 × 10 =
  25. 25.163.1 ÷ 100 =
  26. 26.18.1 × 10 =
  27. 27.227.5 × 100 =
  28. 28.414.1 × 10 =
  29. 29.8.42 × 10 =
  30. 30.37.07 × 1000 =
  31. 31.377.6 ÷ 100 =
  32. 32.8.19 ÷ 100 =
  33. 33.306.7 ÷ 10 =
  34. 34.23.61 ÷ 1000 =
  35. 35.313.1 ÷ 10 =
  36. 36.36.4 × 1000 =
  37. 37.39.91 × 1000 =
  38. 38.324.8 × 10 =
  39. 39.152.9 ÷ 100 =
  40. 40.420.8 × 10 =

Answer key

  1. 4.448
  2. 16.35
  3. 0.823
  4. 27800
  5. 0.02485
  6. 0.1496
  7. 12.84
  8. 210.3
  9. 222500
  10. 4.754
  11. 23750
  12. 1.93
  13. 0.4145
  14. 1.774
  15. 22010
  16. 542
  17. 1105
  18. 25010
  19. 0.2911
  20. 27.91
  21. 132.2
  22. 3355
  23. 424800
  24. 686
  25. 1.631
  26. 181
  27. 22750
  28. 4141
  29. 84.2
  30. 37070
  31. 3.776
  32. 0.0819
  33. 30.67
  34. 0.02361
  35. 31.31
  36. 36400
  37. 39910
  38. 3248
  39. 1.529
  40. 4208

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