← Decimal point jumps lesson New set →

Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 377 · 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. 1.450.7 × 10 =
  2. 2.399.8 × 100 =
  3. 3.35.02 × 10 =
  4. 4.32.41 × 100 =
  5. 5.251.2 × 1000 =
  6. 6.443.2 ÷ 100 =
  7. 7.407.9 ÷ 10 =
  8. 8.5.38 × 100 =
  9. 9.125.2 ÷ 100 =
  10. 10.39.81 ÷ 100 =
  11. 11.22.49 × 1000 =
  12. 12.13.95 ÷ 100 =
  13. 13.37.9 × 100 =
  14. 14.114.6 ÷ 1000 =
  15. 15.24.48 ÷ 10 =
  16. 16.233.5 ÷ 1000 =
  17. 17.4.52 ÷ 100 =
  18. 18.32.54 ÷ 100 =
  19. 19.22.31 × 100 =
  20. 20.22.12 ÷ 100 =
  21. 21.41.18 × 100 =
  22. 22.6.87 ÷ 100 =
  23. 23.44.91 ÷ 10 =
  24. 24.5.03 ÷ 10 =
  25. 25.40.7 × 1000 =
  26. 26.8.94 ÷ 10 =
  27. 27.21.96 ÷ 10 =
  28. 28.41.1 ÷ 10 =
  29. 29.283.8 ÷ 1000 =
  30. 30.43.04 ÷ 1000 =
  31. 31.476.4 ÷ 1000 =
  32. 32.11.51 ÷ 1000 =
  33. 33.1.81 × 100 =
  34. 34.5.83 × 100 =
  35. 35.45.92 ÷ 100 =
  36. 36.2.21 × 10 =
  37. 37.14.31 × 10 =
  38. 38.94.6 ÷ 10 =
  39. 39.239.3 × 1000 =
  40. 40.19.01 × 10 =

Answer key

  1. 4507
  2. 39980
  3. 350.2
  4. 3241
  5. 251200
  6. 4.432
  7. 40.79
  8. 538
  9. 1.252
  10. 0.3981
  11. 22490
  12. 0.1395
  13. 3790
  14. 0.1146
  15. 2.448
  16. 0.2335
  17. 0.0452
  18. 0.3254
  19. 2231
  20. 0.2212
  21. 4118
  22. 0.0687
  23. 4.491
  24. 0.503
  25. 40700
  26. 0.894
  27. 2.196
  28. 4.11
  29. 0.2838
  30. 0.04304
  31. 0.4764
  32. 0.01151
  33. 181
  34. 583
  35. 0.4592
  36. 22.1
  37. 143.1
  38. 9.46
  39. 239300
  40. 190.1

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