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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 35 · 40 questions
TalentJR

The fast method (Halve first): Halve the number. × 5: multiply the half by 10. × 50: multiply the half by 100. Odd number? Its half ends in .5 — 43 → 21.5 — and × 10 moves the point: 215.

NameDateTime takenScore ___ / 40
  1. 1.89 × 50 =
  2. 2.19 × 50 =
  3. 3.88 × 50 =
  4. 4.73 × 5 =
  5. 5.30 × 5 =
  6. 6.33 × 50 =
  7. 7.35 × 5 =
  8. 8.12 × 50 =
  9. 9.32 × 50 =
  10. 10.82 × 5 =
  11. 11.79 × 50 =
  12. 12.50 × 5 =
  13. 13.37 × 5 =
  14. 14.48 × 5 =
  15. 15.54 × 50 =
  16. 16.62 × 50 =
  17. 17.72 × 5 =
  18. 18.93 × 5 =
  19. 19.60 × 50 =
  20. 20.90 × 5 =
  21. 21.85 × 5 =
  22. 22.57 × 50 =
  23. 23.21 × 5 =
  24. 24.64 × 5 =
  25. 25.97 × 50 =
  26. 26.59 × 50 =
  27. 27.24 × 5 =
  28. 28.79 × 50 =
  29. 29.52 × 50 =
  30. 30.22 × 50 =
  31. 31.41 × 50 =
  32. 32.66 × 5 =
  33. 33.95 × 50 =
  34. 34.20 × 5 =
  35. 35.50 × 50 =
  36. 36.21 × 5 =
  37. 37.98 × 5 =
  38. 38.15 × 5 =
  39. 39.95 × 5 =
  40. 40.23 × 5 =

Answer key

  1. 4450
  2. 950
  3. 4400
  4. 365
  5. 150
  6. 1650
  7. 175
  8. 600
  9. 1600
  10. 410
  11. 3950
  12. 250
  13. 185
  14. 240
  15. 2700
  16. 3100
  17. 360
  18. 465
  19. 3000
  20. 450
  21. 425
  22. 2850
  23. 105
  24. 320
  25. 4850
  26. 2950
  27. 120
  28. 3950
  29. 2600
  30. 1100
  31. 2050
  32. 330
  33. 4750
  34. 100
  35. 2500
  36. 105
  37. 490
  38. 75
  39. 475
  40. 115

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