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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 697 · 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. 1.452.7 × 10 =
  2. 2.29.62 × 100 =
  3. 3.480.2 × 100 =
  4. 4.6.86 ÷ 1000 =
  5. 5.293.4 × 100 =
  6. 6.1.41 ÷ 10 =
  7. 7.37.09 × 100 =
  8. 8.11.4 × 10 =
  9. 9.163.8 × 1000 =
  10. 10.285.6 × 1000 =
  11. 11.39.6 × 100 =
  12. 12.42.54 ÷ 1000 =
  13. 13.5.44 ÷ 1000 =
  14. 14.247.4 ÷ 1000 =
  15. 15.36.29 ÷ 10 =
  16. 16.11.78 × 1000 =
  17. 17.370.3 × 1000 =
  18. 18.244.5 × 1000 =
  19. 19.473.6 × 100 =
  20. 20.37.35 × 100 =
  21. 21.1.34 × 100 =
  22. 22.327.4 × 1000 =
  23. 23.22.68 × 10 =
  24. 24.26.73 ÷ 10 =
  25. 25.327.5 × 10 =
  26. 26.369.6 × 1000 =
  27. 27.95.5 × 100 =
  28. 28.15.23 ÷ 10 =
  29. 29.26.51 × 100 =
  30. 30.38.44 ÷ 100 =
  31. 31.415.3 ÷ 1000 =
  32. 32.24.01 × 1000 =
  33. 33.292.1 × 1000 =
  34. 34.1.41 × 1000 =
  35. 35.455.1 × 1000 =
  36. 36.305.2 × 100 =
  37. 37.22.41 × 100 =
  38. 38.441.3 ÷ 100 =
  39. 39.223.3 × 100 =
  40. 40.145.6 ÷ 10 =

Answer key

  1. 4527
  2. 2962
  3. 48020
  4. 0.00686
  5. 29340
  6. 0.141
  7. 3709
  8. 114
  9. 163800
  10. 285600
  11. 3960
  12. 0.04254
  13. 0.00544
  14. 0.2474
  15. 3.629
  16. 11780
  17. 370300
  18. 244500
  19. 47360
  20. 3735
  21. 134
  22. 327400
  23. 226.8
  24. 2.673
  25. 3275
  26. 369600
  27. 9550
  28. 1.523
  29. 2651
  30. 0.3844
  31. 0.4153
  32. 24010
  33. 292100
  34. 1410
  35. 455100
  36. 30520
  37. 2241
  38. 4.413
  39. 22330
  40. 14.56

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