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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 857 · 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. 1.4.83 ÷ 10 =
  2. 2.361.6 × 10 =
  3. 3.44.76 × 10 =
  4. 4.174.7 × 10 =
  5. 5.34.7 × 100 =
  6. 6.208.3 × 10 =
  7. 7.30.6 × 1000 =
  8. 8.22.52 ÷ 1000 =
  9. 9.332.7 ÷ 100 =
  10. 10.43.5 × 100 =
  11. 11.47.15 ÷ 1000 =
  12. 12.80.4 ÷ 100 =
  13. 13.232.8 × 1000 =
  14. 14.32.86 × 100 =
  15. 15.223.4 × 10 =
  16. 16.242.2 × 100 =
  17. 17.0.58 ÷ 100 =
  18. 18.259.3 ÷ 100 =
  19. 19.314.5 ÷ 10 =
  20. 20.210.3 ÷ 1000 =
  21. 21.99.5 ÷ 10 =
  22. 22.9.62 ÷ 10 =
  23. 23.91.9 × 1000 =
  24. 24.24.55 × 10 =
  25. 25.356.8 × 10 =
  26. 26.185.3 × 10 =
  27. 27.490.6 × 10 =
  28. 28.92.1 ÷ 10 =
  29. 29.5.61 × 1000 =
  30. 30.222.4 ÷ 10 =
  31. 31.3.58 ÷ 1000 =
  32. 32.2.14 ÷ 10 =
  33. 33.12.38 ÷ 1000 =
  34. 34.12.11 ÷ 10 =
  35. 35.164.6 × 10 =
  36. 36.25.61 × 10 =
  37. 37.461.9 × 1000 =
  38. 38.18.48 ÷ 100 =
  39. 39.10.06 ÷ 100 =
  40. 40.25.63 × 10 =

Answer key

  1. 0.483
  2. 3616
  3. 447.6
  4. 1747
  5. 3470
  6. 2083
  7. 30600
  8. 0.02252
  9. 3.327
  10. 4350
  11. 0.04715
  12. 0.804
  13. 232800
  14. 3286
  15. 2234
  16. 24220
  17. 0.0058
  18. 2.593
  19. 31.45
  20. 0.2103
  21. 9.95
  22. 0.962
  23. 91900
  24. 245.5
  25. 3568
  26. 1853
  27. 4906
  28. 9.21
  29. 5610
  30. 22.24
  31. 0.00358
  32. 0.214
  33. 0.01238
  34. 1.211
  35. 1646
  36. 256.1
  37. 461900
  38. 0.1848
  39. 0.1006
  40. 256.3

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