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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 606 · 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. 1.11.54 × 1000 =
  2. 2.266.1 × 1000 =
  3. 3.152.1 × 10 =
  4. 4.215.1 ÷ 1000 =
  5. 5.124.6 × 1000 =
  6. 6.47.02 × 100 =
  7. 7.274.2 × 10 =
  8. 8.484.6 ÷ 100 =
  9. 9.165.6 ÷ 100 =
  10. 10.36.22 ÷ 10 =
  11. 11.218.6 × 10 =
  12. 12.1.14 × 100 =
  13. 13.409.6 ÷ 1000 =
  14. 14.273.4 × 10 =
  15. 15.46.6 ÷ 1000 =
  16. 16.401.5 ÷ 10 =
  17. 17.2.09 ÷ 1000 =
  18. 18.115.6 ÷ 1000 =
  19. 19.249.2 ÷ 10 =
  20. 20.297.3 ÷ 100 =
  21. 21.10.03 × 1000 =
  22. 22.22.91 × 1000 =
  23. 23.5.33 × 1000 =
  24. 24.12.99 × 100 =
  25. 25.17.81 × 100 =
  26. 26.18.8 ÷ 100 =
  27. 27.18.57 × 100 =
  28. 28.94.8 × 1000 =
  29. 29.35.1 ÷ 10 =
  30. 30.200.8 × 100 =
  31. 31.36.32 ÷ 100 =
  32. 32.3.67 × 100 =
  33. 33.18.51 × 1000 =
  34. 34.130.1 ÷ 100 =
  35. 35.357.1 ÷ 10 =
  36. 36.49.69 × 10 =
  37. 37.478.7 ÷ 1000 =
  38. 38.469.4 × 10 =
  39. 39.364.9 × 1000 =
  40. 40.342.1 × 1000 =

Answer key

  1. 11540
  2. 266100
  3. 1521
  4. 0.2151
  5. 124600
  6. 4702
  7. 2742
  8. 4.846
  9. 1.656
  10. 3.622
  11. 2186
  12. 114
  13. 0.4096
  14. 2734
  15. 0.0466
  16. 40.15
  17. 0.00209
  18. 0.1156
  19. 24.92
  20. 2.973
  21. 10030
  22. 22910
  23. 5330
  24. 1299
  25. 1781
  26. 0.188
  27. 1857
  28. 94800
  29. 3.51
  30. 20080
  31. 0.3632
  32. 367
  33. 18510
  34. 1.301
  35. 35.71
  36. 496.9
  37. 0.4787
  38. 4694
  39. 364900
  40. 342100

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