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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 797 · 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. 1.136.1 ÷ 1000 =
  2. 2.30.18 ÷ 100 =
  3. 3.82.8 × 10 =
  4. 4.414.8 × 100 =
  5. 5.100.3 × 100 =
  6. 6.404.6 ÷ 100 =
  7. 7.484.2 ÷ 1000 =
  8. 8.24.11 ÷ 10 =
  9. 9.25.21 × 10 =
  10. 10.283.5 × 100 =
  11. 11.404.1 × 1000 =
  12. 12.105.6 × 10 =
  13. 13.466.7 ÷ 10 =
  14. 14.14.18 ÷ 1000 =
  15. 15.53.1 × 1000 =
  16. 16.472.2 × 1000 =
  17. 17.13.57 × 10 =
  18. 18.42.53 × 1000 =
  19. 19.449.5 × 100 =
  20. 20.97.7 × 10 =
  21. 21.204.8 × 10 =
  22. 22.45.33 × 10 =
  23. 23.28.9 × 10 =
  24. 24.334.5 ÷ 10 =
  25. 25.426.2 × 10 =
  26. 26.236.6 × 10 =
  27. 27.2.62 × 1000 =
  28. 28.34.7 × 10 =
  29. 29.29.09 × 100 =
  30. 30.79.7 × 100 =
  31. 31.46.96 ÷ 1000 =
  32. 32.400.9 × 1000 =
  33. 33.26.84 × 10 =
  34. 34.36.56 × 10 =
  35. 35.43.6 × 10 =
  36. 36.28.16 × 10 =
  37. 37.311.1 × 10 =
  38. 38.193.1 × 100 =
  39. 39.32.16 × 10 =
  40. 40.47.91 × 10 =

Answer key

  1. 0.1361
  2. 0.3018
  3. 828
  4. 41480
  5. 10030
  6. 4.046
  7. 0.4842
  8. 2.411
  9. 252.1
  10. 28350
  11. 404100
  12. 1056
  13. 46.67
  14. 0.01418
  15. 53100
  16. 472200
  17. 135.7
  18. 42530
  19. 44950
  20. 977
  21. 2048
  22. 453.3
  23. 289
  24. 33.45
  25. 4262
  26. 2366
  27. 2620
  28. 347
  29. 2909
  30. 7970
  31. 0.04696
  32. 400900
  33. 268.4
  34. 365.6
  35. 436
  36. 281.6
  37. 3111
  38. 19310
  39. 321.6
  40. 479.1

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