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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 227 · 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. 1.7.64 × 100 =
  2. 2.33.22 ÷ 1000 =
  3. 3.384.6 × 1000 =
  4. 4.94.1 × 100 =
  5. 5.7.34 × 100 =
  6. 6.279.5 × 1000 =
  7. 7.15.06 × 1000 =
  8. 8.43.37 × 100 =
  9. 9.20.97 × 10 =
  10. 10.37.37 ÷ 10 =
  11. 11.429.6 × 1000 =
  12. 12.390.2 × 1000 =
  13. 13.12.09 × 10 =
  14. 14.40.25 ÷ 10 =
  15. 15.74.2 × 10 =
  16. 16.31.51 × 1000 =
  17. 17.49.05 ÷ 10 =
  18. 18.401.8 × 100 =
  19. 19.107.6 ÷ 100 =
  20. 20.6.1 × 100 =
  21. 21.83.2 × 10 =
  22. 22.4.91 × 1000 =
  23. 23.19.71 × 100 =
  24. 24.97.4 × 10 =
  25. 25.5.94 × 10 =
  26. 26.2.62 ÷ 100 =
  27. 27.5.18 ÷ 1000 =
  28. 28.455.7 × 10 =
  29. 29.26.99 ÷ 10 =
  30. 30.29.8 ÷ 100 =
  31. 31.65.8 × 10 =
  32. 32.12.63 × 10 =
  33. 33.262.2 × 1000 =
  34. 34.18.96 ÷ 100 =
  35. 35.100.6 × 100 =
  36. 36.10.39 × 1000 =
  37. 37.41.6 × 100 =
  38. 38.160.3 × 1000 =
  39. 39.263.6 × 10 =
  40. 40.6.16 × 100 =

Answer key

  1. 764
  2. 0.03322
  3. 384600
  4. 9410
  5. 734
  6. 279500
  7. 15060
  8. 4337
  9. 209.7
  10. 3.737
  11. 429600
  12. 390200
  13. 120.9
  14. 4.025
  15. 742
  16. 31510
  17. 4.905
  18. 40180
  19. 1.076
  20. 610
  21. 832
  22. 4910
  23. 1971
  24. 974
  25. 59.4
  26. 0.0262
  27. 0.00518
  28. 4557
  29. 2.699
  30. 0.298
  31. 658
  32. 126.3
  33. 262200
  34. 0.1896
  35. 10060
  36. 10390
  37. 4160
  38. 160300
  39. 2636
  40. 616

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