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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 644 · 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. 1.13.73 ÷ 1000 =
  2. 2.24.08 × 100 =
  3. 3.326.7 × 1000 =
  4. 4.255.7 × 100 =
  5. 5.88.8 × 100 =
  6. 6.250.7 ÷ 10 =
  7. 7.20.15 ÷ 1000 =
  8. 8.33.2 ÷ 10 =
  9. 9.127.4 ÷ 10 =
  10. 10.42.86 ÷ 1000 =
  11. 11.400.5 × 1000 =
  12. 12.44.48 ÷ 1000 =
  13. 13.315.5 ÷ 10 =
  14. 14.28.91 × 10 =
  15. 15.24.1 × 10 =
  16. 16.416.9 × 1000 =
  17. 17.27.71 ÷ 1000 =
  18. 18.413.5 × 10 =
  19. 19.19.11 ÷ 100 =
  20. 20.12.14 × 10 =
  21. 21.95.9 ÷ 10 =
  22. 22.19.31 × 1000 =
  23. 23.6.05 ÷ 100 =
  24. 24.14.74 ÷ 10 =
  25. 25.471.9 × 10 =
  26. 26.342.9 × 100 =
  27. 27.44.96 ÷ 1000 =
  28. 28.13.09 × 1000 =
  29. 29.24.24 ÷ 1000 =
  30. 30.29.58 ÷ 10 =
  31. 31.411.4 ÷ 1000 =
  32. 32.28.86 × 100 =
  33. 33.2.44 ÷ 1000 =
  34. 34.225.3 × 10 =
  35. 35.477.1 ÷ 10 =
  36. 36.63.7 ÷ 1000 =
  37. 37.338.5 × 10 =
  38. 38.117.9 × 1000 =
  39. 39.159.6 ÷ 100 =
  40. 40.103.1 × 10 =

Answer key

  1. 0.01373
  2. 2408
  3. 326700
  4. 25570
  5. 8880
  6. 25.07
  7. 0.02015
  8. 3.32
  9. 12.74
  10. 0.04286
  11. 400500
  12. 0.04448
  13. 31.55
  14. 289.1
  15. 241
  16. 416900
  17. 0.02771
  18. 4135
  19. 0.1911
  20. 121.4
  21. 9.59
  22. 19310
  23. 0.0605
  24. 1.474
  25. 4719
  26. 34290
  27. 0.04496
  28. 13090
  29. 0.02424
  30. 2.958
  31. 0.4114
  32. 2886
  33. 0.00244
  34. 2253
  35. 47.71
  36. 0.0637
  37. 3385
  38. 117900
  39. 1.596
  40. 1031

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