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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 169 · 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. 1.193.6 ÷ 100 =
  2. 2.12.14 ÷ 1000 =
  3. 3.182.9 ÷ 10 =
  4. 4.237.8 ÷ 10 =
  5. 5.40.72 × 10 =
  6. 6.39.02 × 1000 =
  7. 7.373.2 × 100 =
  8. 8.13.9 ÷ 100 =
  9. 9.26.92 × 1000 =
  10. 10.281.1 ÷ 10 =
  11. 11.434.1 × 10 =
  12. 12.29.5 ÷ 100 =
  13. 13.3.61 × 1000 =
  14. 14.86.1 × 100 =
  15. 15.379.6 ÷ 1000 =
  16. 16.46.12 × 100 =
  17. 17.30.59 × 10 =
  18. 18.62.6 ÷ 100 =
  19. 19.4.33 ÷ 10 =
  20. 20.13.33 ÷ 1000 =
  21. 21.11.37 × 100 =
  22. 22.380.1 ÷ 100 =
  23. 23.3.15 × 100 =
  24. 24.14.24 × 10 =
  25. 25.489.1 × 1000 =
  26. 26.24.83 × 10 =
  27. 27.23.62 ÷ 10 =
  28. 28.300.7 × 10 =
  29. 29.30.02 × 10 =
  30. 30.82.6 × 1000 =
  31. 31.4.67 × 10 =
  32. 32.35.77 × 1000 =
  33. 33.28.4 ÷ 100 =
  34. 34.165.2 × 100 =
  35. 35.303.4 ÷ 1000 =
  36. 36.361.1 × 1000 =
  37. 37.26.71 × 10 =
  38. 38.43.08 ÷ 100 =
  39. 39.111.8 × 1000 =
  40. 40.54.3 × 1000 =

Answer key

  1. 1.936
  2. 0.01214
  3. 18.29
  4. 23.78
  5. 407.2
  6. 39020
  7. 37320
  8. 0.139
  9. 26920
  10. 28.11
  11. 4341
  12. 0.295
  13. 3610
  14. 8610
  15. 0.3796
  16. 4612
  17. 305.9
  18. 0.626
  19. 0.433
  20. 0.01333
  21. 1137
  22. 3.801
  23. 315
  24. 142.4
  25. 489100
  26. 248.3
  27. 2.362
  28. 3007
  29. 300.2
  30. 82600
  31. 46.7
  32. 35770
  33. 0.284
  34. 16520
  35. 0.3034
  36. 361100
  37. 267.1
  38. 0.4308
  39. 111800
  40. 54300

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