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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 453 · 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. 1.0.33 ÷ 100 =
  2. 2.29.67 ÷ 10 =
  3. 3.466.3 × 1000 =
  4. 4.34.46 × 100 =
  5. 5.4.05 ÷ 10 =
  6. 6.9.21 ÷ 1000 =
  7. 7.431.8 ÷ 10 =
  8. 8.249.7 × 1000 =
  9. 9.330.9 ÷ 10 =
  10. 10.125.2 ÷ 10 =
  11. 11.32.11 × 1000 =
  12. 12.41.94 × 100 =
  13. 13.42.97 × 10 =
  14. 14.339.1 ÷ 10 =
  15. 15.42.78 ÷ 1000 =
  16. 16.35.56 ÷ 1000 =
  17. 17.35.68 × 10 =
  18. 18.35.76 ÷ 100 =
  19. 19.230.9 ÷ 1000 =
  20. 20.14.01 ÷ 1000 =
  21. 21.459.6 ÷ 100 =
  22. 22.5.32 × 10 =
  23. 23.236.4 × 10 =
  24. 24.39.6 × 1000 =
  25. 25.8.81 × 1000 =
  26. 26.327.2 ÷ 100 =
  27. 27.339.4 × 100 =
  28. 28.40.75 × 1000 =
  29. 29.13.7 × 1000 =
  30. 30.246.2 ÷ 100 =
  31. 31.398.7 ÷ 100 =
  32. 32.3.17 × 1000 =
  33. 33.42.21 ÷ 10 =
  34. 34.4.45 ÷ 100 =
  35. 35.36.44 ÷ 100 =
  36. 36.34.8 × 1000 =
  37. 37.232.6 × 100 =
  38. 38.25.34 ÷ 100 =
  39. 39.20.41 × 1000 =
  40. 40.417.4 ÷ 100 =

Answer key

  1. 0.0033
  2. 2.967
  3. 466300
  4. 3446
  5. 0.405
  6. 0.00921
  7. 43.18
  8. 249700
  9. 33.09
  10. 12.52
  11. 32110
  12. 4194
  13. 429.7
  14. 33.91
  15. 0.04278
  16. 0.03556
  17. 356.8
  18. 0.3576
  19. 0.2309
  20. 0.01401
  21. 4.596
  22. 53.2
  23. 2364
  24. 39600
  25. 8810
  26. 3.272
  27. 33940
  28. 40750
  29. 13700
  30. 2.462
  31. 3.987
  32. 3170
  33. 4.221
  34. 0.0445
  35. 0.3644
  36. 34800
  37. 23260
  38. 0.2534
  39. 20410
  40. 4.174

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