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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 385 · 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. 1.351.4 × 1000 =
  2. 2.397.6 × 10 =
  3. 3.105.6 ÷ 10 =
  4. 4.191.6 ÷ 10 =
  5. 5.230.6 × 100 =
  6. 6.52.9 × 100 =
  7. 7.14.68 × 100 =
  8. 8.121.1 × 10 =
  9. 9.64.1 × 1000 =
  10. 10.294.2 ÷ 100 =
  11. 11.37.17 ÷ 1000 =
  12. 12.294.8 ÷ 10 =
  13. 13.150.2 × 10 =
  14. 14.327.3 × 10 =
  15. 15.298.3 × 1000 =
  16. 16.256.9 × 1000 =
  17. 17.144.5 ÷ 1000 =
  18. 18.290.2 × 1000 =
  19. 19.12.27 × 1000 =
  20. 20.19.23 × 10 =
  21. 21.29.71 × 100 =
  22. 22.10.89 × 10 =
  23. 23.5.15 × 1000 =
  24. 24.31.73 × 1000 =
  25. 25.39.05 ÷ 10 =
  26. 26.287.1 × 100 =
  27. 27.4.61 ÷ 100 =
  28. 28.20.58 × 1000 =
  29. 29.51.1 × 100 =
  30. 30.1.45 × 100 =
  31. 31.54.9 ÷ 10 =
  32. 32.490.6 ÷ 1000 =
  33. 33.476.5 × 100 =
  34. 34.45.99 ÷ 1000 =
  35. 35.4.7 ÷ 10 =
  36. 36.10.41 × 1000 =
  37. 37.139.6 × 1000 =
  38. 38.31.56 ÷ 1000 =
  39. 39.3.52 × 100 =
  40. 40.38.17 × 1000 =

Answer key

  1. 351400
  2. 3976
  3. 10.56
  4. 19.16
  5. 23060
  6. 5290
  7. 1468
  8. 1211
  9. 64100
  10. 2.942
  11. 0.03717
  12. 29.48
  13. 1502
  14. 3273
  15. 298300
  16. 256900
  17. 0.1445
  18. 290200
  19. 12270
  20. 192.3
  21. 2971
  22. 108.9
  23. 5150
  24. 31730
  25. 3.905
  26. 28710
  27. 0.0461
  28. 20580
  29. 5110
  30. 145
  31. 5.49
  32. 0.4906
  33. 47650
  34. 0.04599
  35. 0.47
  36. 10410
  37. 139600
  38. 0.03156
  39. 352
  40. 38170

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