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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 162 · 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. 1.422.8 ÷ 100 =
  2. 2.0.55 ÷ 1000 =
  3. 3.492.3 × 10 =
  4. 4.38.31 × 100 =
  5. 5.6.13 × 100 =
  6. 6.428.9 × 10 =
  7. 7.142.4 × 100 =
  8. 8.411.3 × 10 =
  9. 9.27.85 ÷ 1000 =
  10. 10.25.36 × 100 =
  11. 11.303.6 ÷ 10 =
  12. 12.52.1 ÷ 100 =
  13. 13.32.54 × 1000 =
  14. 14.26.95 × 100 =
  15. 15.31.52 ÷ 10 =
  16. 16.271.3 ÷ 10 =
  17. 17.15.31 ÷ 10 =
  18. 18.24.42 ÷ 100 =
  19. 19.1.68 ÷ 1000 =
  20. 20.293.4 ÷ 10 =
  21. 21.37.63 × 100 =
  22. 22.67.1 × 100 =
  23. 23.5.7 ÷ 1000 =
  24. 24.0.28 × 10 =
  25. 25.402.2 ÷ 100 =
  26. 26.420.3 ÷ 1000 =
  27. 27.38.92 ÷ 10 =
  28. 28.23.51 ÷ 100 =
  29. 29.293.7 ÷ 100 =
  30. 30.485.2 ÷ 10 =
  31. 31.16.96 × 10 =
  32. 32.379.8 × 100 =
  33. 33.230.7 × 10 =
  34. 34.375.6 ÷ 100 =
  35. 35.26.89 × 10 =
  36. 36.484.4 ÷ 10 =
  37. 37.395.1 × 10 =
  38. 38.379.1 ÷ 10 =
  39. 39.83.8 × 10 =
  40. 40.9.27 ÷ 1000 =

Answer key

  1. 4.228
  2. 0.00055
  3. 4923
  4. 3831
  5. 613
  6. 4289
  7. 14240
  8. 4113
  9. 0.02785
  10. 2536
  11. 30.36
  12. 0.521
  13. 32540
  14. 2695
  15. 3.152
  16. 27.13
  17. 1.531
  18. 0.2442
  19. 0.00168
  20. 29.34
  21. 3763
  22. 6710
  23. 0.0057
  24. 2.8
  25. 4.022
  26. 0.4203
  27. 3.892
  28. 0.2351
  29. 2.937
  30. 48.52
  31. 169.6
  32. 37980
  33. 2307
  34. 3.756
  35. 268.9
  36. 48.44
  37. 3951
  38. 37.91
  39. 838
  40. 0.00927

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