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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 291 · 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. 1.187.6 ÷ 100 =
  2. 2.414.6 ÷ 1000 =
  3. 3.29.13 ÷ 1000 =
  4. 4.12.58 ÷ 100 =
  5. 5.490.1 ÷ 100 =
  6. 6.240.4 ÷ 1000 =
  7. 7.149.8 ÷ 100 =
  8. 8.45.9 ÷ 10 =
  9. 9.40.11 ÷ 1000 =
  10. 10.65.1 × 1000 =
  11. 11.31.76 ÷ 10 =
  12. 12.312.4 × 100 =
  13. 13.266.6 ÷ 100 =
  14. 14.49.94 ÷ 100 =
  15. 15.30.11 × 1000 =
  16. 16.443.9 ÷ 1000 =
  17. 17.77.1 × 100 =
  18. 18.116.3 × 100 =
  19. 19.12.09 ÷ 100 =
  20. 20.40.87 ÷ 1000 =
  21. 21.134.4 ÷ 100 =
  22. 22.1.51 × 10 =
  23. 23.8.4 × 1000 =
  24. 24.220.2 ÷ 10 =
  25. 25.1.7 ÷ 10 =
  26. 26.25.43 ÷ 100 =
  27. 27.36.48 ÷ 1000 =
  28. 28.45.21 × 10 =
  29. 29.40.71 × 10 =
  30. 30.144.4 × 100 =
  31. 31.34.17 × 10 =
  32. 32.46.71 × 10 =
  33. 33.111.5 ÷ 1000 =
  34. 34.39.27 × 10 =
  35. 35.66.4 ÷ 10 =
  36. 36.47.97 × 10 =
  37. 37.2.92 × 1000 =
  38. 38.182.4 × 10 =
  39. 39.202.1 ÷ 1000 =
  40. 40.431.5 ÷ 100 =

Answer key

  1. 1.876
  2. 0.4146
  3. 0.02913
  4. 0.1258
  5. 4.901
  6. 0.2404
  7. 1.498
  8. 4.59
  9. 0.04011
  10. 65100
  11. 3.176
  12. 31240
  13. 2.666
  14. 0.4994
  15. 30110
  16. 0.4439
  17. 7710
  18. 11630
  19. 0.1209
  20. 0.04087
  21. 1.344
  22. 15.1
  23. 8400
  24. 22.02
  25. 0.17
  26. 0.2543
  27. 0.03648
  28. 452.1
  29. 407.1
  30. 14440
  31. 341.7
  32. 467.1
  33. 0.1115
  34. 392.7
  35. 6.64
  36. 479.7
  37. 2920
  38. 1824
  39. 0.2021
  40. 4.315

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