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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 774 · 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. 1.27.29 ÷ 10 =
  2. 2.47.95 × 100 =
  3. 3.69.1 ÷ 1000 =
  4. 4.34.74 × 1000 =
  5. 5.13.53 ÷ 100 =
  6. 6.34.71 ÷ 1000 =
  7. 7.230.4 × 100 =
  8. 8.441.2 ÷ 1000 =
  9. 9.417.2 ÷ 10 =
  10. 10.1.89 × 100 =
  11. 11.23.56 ÷ 1000 =
  12. 12.4.4 × 100 =
  13. 13.60.6 ÷ 1000 =
  14. 14.22.26 × 100 =
  15. 15.2.41 × 100 =
  16. 16.9.41 × 10 =
  17. 17.20.51 ÷ 10 =
  18. 18.27.63 × 10 =
  19. 19.36.19 × 10 =
  20. 20.294.3 × 1000 =
  21. 21.8.1 ÷ 100 =
  22. 22.30.94 × 10 =
  23. 23.403.5 ÷ 100 =
  24. 24.210.7 ÷ 1000 =
  25. 25.454.4 ÷ 100 =
  26. 26.174.8 × 10 =
  27. 27.259.2 ÷ 1000 =
  28. 28.40.28 ÷ 1000 =
  29. 29.47.74 ÷ 1000 =
  30. 30.10.03 ÷ 1000 =
  31. 31.310.8 ÷ 100 =
  32. 32.374.9 × 100 =
  33. 33.473.4 × 100 =
  34. 34.319.7 ÷ 10 =
  35. 35.228.1 ÷ 1000 =
  36. 36.316.9 × 10 =
  37. 37.372.7 × 10 =
  38. 38.24.8 ÷ 1000 =
  39. 39.20.28 ÷ 100 =
  40. 40.256.2 ÷ 1000 =

Answer key

  1. 2.729
  2. 4795
  3. 0.0691
  4. 34740
  5. 0.1353
  6. 0.03471
  7. 23040
  8. 0.4412
  9. 41.72
  10. 189
  11. 0.02356
  12. 440
  13. 0.0606
  14. 2226
  15. 241
  16. 94.1
  17. 2.051
  18. 276.3
  19. 361.9
  20. 294300
  21. 0.081
  22. 309.4
  23. 4.035
  24. 0.2107
  25. 4.544
  26. 1748
  27. 0.2592
  28. 0.04028
  29. 0.04774
  30. 0.01003
  31. 3.108
  32. 37490
  33. 47340
  34. 31.97
  35. 0.2281
  36. 3169
  37. 3727
  38. 0.0248
  39. 0.2028
  40. 0.2562

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