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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 124 · 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. 1.12.69 × 10 =
  2. 2.441.6 × 10 =
  3. 3.414.6 × 10 =
  4. 4.7.5 ÷ 100 =
  5. 5.486.7 ÷ 100 =
  6. 6.199.7 ÷ 1000 =
  7. 7.339.8 × 1000 =
  8. 8.160.4 ÷ 10 =
  9. 9.10.36 ÷ 10 =
  10. 10.45.76 × 10 =
  11. 11.38.6 ÷ 10 =
  12. 12.22.58 ÷ 100 =
  13. 13.34.15 ÷ 1000 =
  14. 14.142.9 × 10 =
  15. 15.48.43 ÷ 100 =
  16. 16.13.15 × 1000 =
  17. 17.165.9 × 10 =
  18. 18.5.65 × 1000 =
  19. 19.209.5 × 1000 =
  20. 20.3.51 ÷ 1000 =
  21. 21.231.1 × 10 =
  22. 22.1.68 × 100 =
  23. 23.4.78 × 10 =
  24. 24.76.6 × 10 =
  25. 25.363.1 × 1000 =
  26. 26.12.74 × 100 =
  27. 27.102.4 × 100 =
  28. 28.478.1 ÷ 10 =
  29. 29.18.45 ÷ 10 =
  30. 30.358.9 ÷ 10 =
  31. 31.24.51 × 1000 =
  32. 32.36.15 ÷ 100 =
  33. 33.29.51 ÷ 10 =
  34. 34.140.6 ÷ 1000 =
  35. 35.214.3 × 100 =
  36. 36.457.4 × 1000 =
  37. 37.36.61 × 100 =
  38. 38.16.78 ÷ 100 =
  39. 39.25.68 × 10 =
  40. 40.258.4 ÷ 10 =

Answer key

  1. 126.9
  2. 4416
  3. 4146
  4. 0.075
  5. 4.867
  6. 0.1997
  7. 339800
  8. 16.04
  9. 1.036
  10. 457.6
  11. 3.86
  12. 0.2258
  13. 0.03415
  14. 1429
  15. 0.4843
  16. 13150
  17. 1659
  18. 5650
  19. 209500
  20. 0.00351
  21. 2311
  22. 168
  23. 47.8
  24. 766
  25. 363100
  26. 1274
  27. 10240
  28. 47.81
  29. 1.845
  30. 35.89
  31. 24510
  32. 0.3615
  33. 2.951
  34. 0.1406
  35. 21430
  36. 457400
  37. 3661
  38. 0.1678
  39. 256.8
  40. 25.84

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