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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 167 · 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. 1.182.4 ÷ 10 =
  2. 2.8.2 × 100 =
  3. 3.135.5 × 10 =
  4. 4.37.68 × 10 =
  5. 5.11.18 × 10 =
  6. 6.149.3 ÷ 1000 =
  7. 7.186.3 ÷ 10 =
  8. 8.21.7 ÷ 10 =
  9. 9.33.23 × 1000 =
  10. 10.13.77 × 1000 =
  11. 11.45.77 × 100 =
  12. 12.18.13 ÷ 1000 =
  13. 13.12.4 × 100 =
  14. 14.12.94 × 10 =
  15. 15.17.3 ÷ 10 =
  16. 16.127.8 × 10 =
  17. 17.7.06 ÷ 10 =
  18. 18.4.42 ÷ 100 =
  19. 19.451.9 ÷ 1000 =
  20. 20.7.4 ÷ 10 =
  21. 21.194.2 ÷ 100 =
  22. 22.199.1 × 10 =
  23. 23.2.1 × 100 =
  24. 24.1.75 × 100 =
  25. 25.37.22 ÷ 10 =
  26. 26.1.09 ÷ 1000 =
  27. 27.43.39 ÷ 10 =
  28. 28.36.46 × 10 =
  29. 29.6.31 × 1000 =
  30. 30.436.7 × 10 =
  31. 31.263.2 ÷ 100 =
  32. 32.342.3 ÷ 10 =
  33. 33.25.33 ÷ 1000 =
  34. 34.48.48 ÷ 1000 =
  35. 35.180.6 ÷ 1000 =
  36. 36.31.06 ÷ 10 =
  37. 37.395.9 × 10 =
  38. 38.31.4 ÷ 10 =
  39. 39.170.6 ÷ 1000 =
  40. 40.0.98 × 100 =

Answer key

  1. 18.24
  2. 820
  3. 1355
  4. 376.8
  5. 111.8
  6. 0.1493
  7. 18.63
  8. 2.17
  9. 33230
  10. 13770
  11. 4577
  12. 0.01813
  13. 1240
  14. 129.4
  15. 1.73
  16. 1278
  17. 0.706
  18. 0.0442
  19. 0.4519
  20. 0.74
  21. 1.942
  22. 1991
  23. 210
  24. 175
  25. 3.722
  26. 0.00109
  27. 4.339
  28. 364.6
  29. 6310
  30. 4367
  31. 2.632
  32. 34.23
  33. 0.02533
  34. 0.04848
  35. 0.1806
  36. 3.106
  37. 3959
  38. 3.14
  39. 0.1706
  40. 98

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