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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 372 · 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. 1.284.2 ÷ 10 =
  2. 2.490.4 × 100 =
  3. 3.170.3 ÷ 1000 =
  4. 4.299.4 × 10 =
  5. 5.114.6 × 1000 =
  6. 6.46.48 ÷ 1000 =
  7. 7.4.34 × 100 =
  8. 8.30.04 ÷ 1000 =
  9. 9.317.1 ÷ 10 =
  10. 10.43.59 ÷ 1000 =
  11. 11.474.1 × 100 =
  12. 12.294.1 × 10 =
  13. 13.292.9 ÷ 1000 =
  14. 14.363.8 × 100 =
  15. 15.34.76 × 10 =
  16. 16.103.1 × 1000 =
  17. 17.43.71 ÷ 10 =
  18. 18.22.52 × 10 =
  19. 19.25.42 ÷ 1000 =
  20. 20.274.7 ÷ 1000 =
  21. 21.38.01 ÷ 10 =
  22. 22.480.1 ÷ 10 =
  23. 23.72.8 × 100 =
  24. 24.280.6 × 1000 =
  25. 25.34.2 × 10 =
  26. 26.348.7 × 100 =
  27. 27.31.27 ÷ 10 =
  28. 28.188.6 × 1000 =
  29. 29.269.4 × 1000 =
  30. 30.172.3 × 1000 =
  31. 31.30.78 × 10 =
  32. 32.5.7 ÷ 10 =
  33. 33.28.46 × 10 =
  34. 34.186.9 ÷ 10 =
  35. 35.121.3 ÷ 10 =
  36. 36.32.08 ÷ 1000 =
  37. 37.193.2 × 1000 =
  38. 38.48.35 × 10 =
  39. 39.66.9 ÷ 10 =
  40. 40.356.3 ÷ 1000 =

Answer key

  1. 28.42
  2. 49040
  3. 0.1703
  4. 2994
  5. 114600
  6. 0.04648
  7. 434
  8. 0.03004
  9. 31.71
  10. 0.04359
  11. 47410
  12. 2941
  13. 0.2929
  14. 36380
  15. 347.6
  16. 103100
  17. 4.371
  18. 225.2
  19. 0.02542
  20. 0.2747
  21. 3.801
  22. 48.01
  23. 7280
  24. 280600
  25. 342
  26. 34870
  27. 3.127
  28. 188600
  29. 269400
  30. 172300
  31. 307.8
  32. 0.57
  33. 284.6
  34. 18.69
  35. 12.13
  36. 0.03208
  37. 193200
  38. 483.5
  39. 6.69
  40. 0.3563

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