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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 354 · 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. 1.12.43 ÷ 10 =
  2. 2.20.21 × 100 =
  3. 3.49.07 ÷ 1000 =
  4. 4.3.87 × 100 =
  5. 5.402.3 × 10 =
  6. 6.41.65 ÷ 100 =
  7. 7.28.22 × 100 =
  8. 8.148.9 ÷ 100 =
  9. 9.40.25 ÷ 10 =
  10. 10.16.06 × 10 =
  11. 11.12.91 ÷ 1000 =
  12. 12.24.45 × 1000 =
  13. 13.140.3 × 10 =
  14. 14.495.8 × 10 =
  15. 15.37.26 ÷ 10 =
  16. 16.7.47 × 10 =
  17. 17.4.34 × 1000 =
  18. 18.106.9 × 1000 =
  19. 19.314.8 ÷ 1000 =
  20. 20.13.3 × 1000 =
  21. 21.33.96 × 100 =
  22. 22.93.3 × 10 =
  23. 23.37.2 × 100 =
  24. 24.14.91 × 10 =
  25. 25.133.4 ÷ 1000 =
  26. 26.347.3 × 1000 =
  27. 27.226.1 × 1000 =
  28. 28.41.29 ÷ 1000 =
  29. 29.1.2 ÷ 10 =
  30. 30.478.9 ÷ 100 =
  31. 31.28.48 ÷ 10 =
  32. 32.293.7 × 100 =
  33. 33.13.97 × 10 =
  34. 34.27.23 ÷ 100 =
  35. 35.453.5 × 10 =
  36. 36.449.3 × 1000 =
  37. 37.187.5 ÷ 100 =
  38. 38.48.47 ÷ 1000 =
  39. 39.21.5 ÷ 1000 =
  40. 40.120.2 × 10 =

Answer key

  1. 1.243
  2. 2021
  3. 0.04907
  4. 387
  5. 4023
  6. 0.4165
  7. 2822
  8. 1.489
  9. 4.025
  10. 160.6
  11. 0.01291
  12. 24450
  13. 1403
  14. 4958
  15. 3.726
  16. 74.7
  17. 4340
  18. 106900
  19. 0.3148
  20. 13300
  21. 3396
  22. 933
  23. 3720
  24. 149.1
  25. 0.1334
  26. 347300
  27. 226100
  28. 0.04129
  29. 0.12
  30. 4.789
  31. 2.848
  32. 29370
  33. 139.7
  34. 0.2723
  35. 4535
  36. 449300
  37. 1.875
  38. 0.04847
  39. 0.0215
  40. 1202

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