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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 237 · 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. 1.8.93 ÷ 100 =
  2. 2.102.1 ÷ 10 =
  3. 3.363.1 ÷ 1000 =
  4. 4.28.01 ÷ 100 =
  5. 5.423.9 × 10 =
  6. 6.163.2 ÷ 1000 =
  7. 7.44.53 × 10 =
  8. 8.45.51 × 10 =
  9. 9.15.9 ÷ 10 =
  10. 10.47.1 × 100 =
  11. 11.85.4 ÷ 100 =
  12. 12.224.9 ÷ 100 =
  13. 13.7.12 ÷ 1000 =
  14. 14.33.43 × 1000 =
  15. 15.28.64 × 10 =
  16. 16.15.55 × 100 =
  17. 17.24.7 × 100 =
  18. 18.19.09 ÷ 10 =
  19. 19.12.74 × 10 =
  20. 20.43.72 ÷ 1000 =
  21. 21.13.02 ÷ 10 =
  22. 22.130.2 × 1000 =
  23. 23.35.63 ÷ 10 =
  24. 24.17.56 × 10 =
  25. 25.408.4 × 100 =
  26. 26.458.1 × 100 =
  27. 27.44.53 ÷ 1000 =
  28. 28.289.3 ÷ 10 =
  29. 29.103.2 ÷ 100 =
  30. 30.233.7 ÷ 100 =
  31. 31.417.1 ÷ 100 =
  32. 32.14.61 ÷ 100 =
  33. 33.28.4 × 100 =
  34. 34.47.34 × 1000 =
  35. 35.48.58 × 10 =
  36. 36.85.5 × 10 =
  37. 37.35.96 × 100 =
  38. 38.34.89 × 100 =
  39. 39.39.35 × 10 =
  40. 40.49.42 × 10 =

Answer key

  1. 0.0893
  2. 10.21
  3. 0.3631
  4. 0.2801
  5. 4239
  6. 0.1632
  7. 445.3
  8. 455.1
  9. 1.59
  10. 4710
  11. 0.854
  12. 2.249
  13. 0.00712
  14. 33430
  15. 286.4
  16. 1555
  17. 2470
  18. 1.909
  19. 127.4
  20. 0.04372
  21. 1.302
  22. 130200
  23. 3.563
  24. 175.6
  25. 40840
  26. 45810
  27. 0.04453
  28. 28.93
  29. 1.032
  30. 2.337
  31. 4.171
  32. 0.1461
  33. 2840
  34. 47340
  35. 485.8
  36. 855
  37. 3596
  38. 3489
  39. 393.5
  40. 494.2

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