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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 844 · 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. 1.196.1 × 10 =
  2. 2.111.3 ÷ 1000 =
  3. 3.366.2 × 1000 =
  4. 4.283.2 × 1000 =
  5. 5.20.36 × 100 =
  6. 6.87.8 × 1000 =
  7. 7.14.57 × 1000 =
  8. 8.42.92 × 10 =
  9. 9.164.1 ÷ 10 =
  10. 10.22.88 × 1000 =
  11. 11.47.23 ÷ 10 =
  12. 12.35.69 ÷ 10 =
  13. 13.35.92 ÷ 100 =
  14. 14.1.64 ÷ 100 =
  15. 15.47.54 × 100 =
  16. 16.377.3 ÷ 10 =
  17. 17.5.9 × 1000 =
  18. 18.7.13 ÷ 1000 =
  19. 19.17.84 ÷ 1000 =
  20. 20.37.71 × 10 =
  21. 21.38.02 × 100 =
  22. 22.34.3 ÷ 100 =
  23. 23.5.12 × 1000 =
  24. 24.26.52 × 10 =
  25. 25.1.91 × 10 =
  26. 26.149.1 × 1000 =
  27. 27.113.3 × 10 =
  28. 28.227.9 × 100 =
  29. 29.274.3 ÷ 100 =
  30. 30.450.8 × 10 =
  31. 31.6.63 × 100 =
  32. 32.37.49 × 1000 =
  33. 33.75.3 × 10 =
  34. 34.103.3 × 100 =
  35. 35.2.43 × 10 =
  36. 36.9.28 ÷ 1000 =
  37. 37.37.99 × 100 =
  38. 38.7.32 × 100 =
  39. 39.431.9 ÷ 10 =
  40. 40.476.5 ÷ 10 =

Answer key

  1. 1961
  2. 0.1113
  3. 366200
  4. 283200
  5. 2036
  6. 87800
  7. 14570
  8. 429.2
  9. 16.41
  10. 22880
  11. 4.723
  12. 3.569
  13. 0.3592
  14. 0.0164
  15. 4754
  16. 37.73
  17. 5900
  18. 0.00713
  19. 0.01784
  20. 377.1
  21. 3802
  22. 0.343
  23. 5120
  24. 265.2
  25. 19.1
  26. 149100
  27. 1133
  28. 22790
  29. 2.743
  30. 4508
  31. 663
  32. 37490
  33. 753
  34. 10330
  35. 24.3
  36. 0.00928
  37. 3799
  38. 732
  39. 43.19
  40. 47.65

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