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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 203 · 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. 1.17.13 ÷ 1000 =
  2. 2.30.09 ÷ 10 =
  3. 3.11.58 × 1000 =
  4. 4.16.41 ÷ 10 =
  5. 5.381.9 × 1000 =
  6. 6.12.14 × 10 =
  7. 7.302.9 × 1000 =
  8. 8.19.99 ÷ 10 =
  9. 9.480.1 ÷ 10 =
  10. 10.41.63 ÷ 1000 =
  11. 11.78.4 × 100 =
  12. 12.8.75 × 100 =
  13. 13.104.1 ÷ 10 =
  14. 14.5.18 ÷ 10 =
  15. 15.30.5 × 1000 =
  16. 16.5.3 × 10 =
  17. 17.2.22 × 1000 =
  18. 18.271.7 ÷ 10 =
  19. 19.429.8 ÷ 100 =
  20. 20.100.9 × 1000 =
  21. 21.200.4 × 100 =
  22. 22.64.2 × 100 =
  23. 23.309.6 ÷ 100 =
  24. 24.363.4 ÷ 1000 =
  25. 25.449.7 ÷ 10 =
  26. 26.206.5 × 10 =
  27. 27.374.6 × 100 =
  28. 28.45.97 × 100 =
  29. 29.176.2 ÷ 100 =
  30. 30.159.4 × 10 =
  31. 31.16.74 ÷ 1000 =
  32. 32.494.9 × 1000 =
  33. 33.52.1 × 100 =
  34. 34.3.6 × 10 =
  35. 35.88.7 × 10 =
  36. 36.175.9 ÷ 100 =
  37. 37.373.8 ÷ 100 =
  38. 38.22.94 × 10 =
  39. 39.113.2 × 100 =
  40. 40.24.72 × 1000 =

Answer key

  1. 0.01713
  2. 3.009
  3. 11580
  4. 1.641
  5. 381900
  6. 121.4
  7. 302900
  8. 1.999
  9. 48.01
  10. 0.04163
  11. 7840
  12. 875
  13. 10.41
  14. 0.518
  15. 30500
  16. 53
  17. 2220
  18. 27.17
  19. 4.298
  20. 100900
  21. 20040
  22. 6420
  23. 3.096
  24. 0.3634
  25. 44.97
  26. 2065
  27. 37460
  28. 4597
  29. 1.762
  30. 1594
  31. 0.01674
  32. 494900
  33. 5210
  34. 36
  35. 887
  36. 1.759
  37. 3.738
  38. 229.4
  39. 11320
  40. 24720

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