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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 307 · 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. 1.252.1 × 1000 =
  2. 2.36.01 ÷ 1000 =
  3. 3.47.75 × 10 =
  4. 4.4.87 × 1000 =
  5. 5.12.27 ÷ 100 =
  6. 6.80.7 × 1000 =
  7. 7.32.94 ÷ 100 =
  8. 8.36.76 ÷ 10 =
  9. 9.13.5 ÷ 100 =
  10. 10.13.21 × 100 =
  11. 11.98.1 × 100 =
  12. 12.370.8 ÷ 10 =
  13. 13.372.7 × 10 =
  14. 14.110.2 × 100 =
  15. 15.49.1 × 1000 =
  16. 16.31.98 × 100 =
  17. 17.320.6 ÷ 1000 =
  18. 18.6.36 ÷ 1000 =
  19. 19.0.13 × 1000 =
  20. 20.357.4 × 10 =
  21. 21.1.65 ÷ 10 =
  22. 22.425.4 × 100 =
  23. 23.69.5 × 10 =
  24. 24.15.35 × 1000 =
  25. 25.27.95 × 10 =
  26. 26.14.17 ÷ 100 =
  27. 27.0.59 × 1000 =
  28. 28.22.76 × 10 =
  29. 29.49.21 ÷ 1000 =
  30. 30.23.4 × 100 =
  31. 31.34.77 ÷ 100 =
  32. 32.151.5 × 100 =
  33. 33.181.5 × 100 =
  34. 34.35.02 ÷ 10 =
  35. 35.11.46 × 10 =
  36. 36.29.1 ÷ 10 =
  37. 37.49.99 ÷ 100 =
  38. 38.467.6 ÷ 100 =
  39. 39.24.88 ÷ 10 =
  40. 40.46.5 ÷ 10 =

Answer key

  1. 252100
  2. 0.03601
  3. 477.5
  4. 4870
  5. 0.1227
  6. 80700
  7. 0.3294
  8. 3.676
  9. 0.135
  10. 1321
  11. 9810
  12. 37.08
  13. 3727
  14. 11020
  15. 49100
  16. 3198
  17. 0.3206
  18. 0.00636
  19. 130
  20. 3574
  21. 0.165
  22. 42540
  23. 695
  24. 15350
  25. 279.5
  26. 0.1417
  27. 590
  28. 227.6
  29. 0.04921
  30. 2340
  31. 0.3477
  32. 15150
  33. 18150
  34. 3.502
  35. 114.6
  36. 2.91
  37. 0.4999
  38. 4.676
  39. 2.488
  40. 4.65

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