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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 224 · 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. 1.66 × 50 =
  2. 2.53 × 50 =
  3. 3.22 × 5 =
  4. 4.19 × 50 =
  5. 5.57 × 50 =
  6. 6.95 × 50 =
  7. 7.84 × 5 =
  8. 8.33 × 50 =
  9. 9.39 × 50 =
  10. 10.88 × 5 =
  11. 11.17 × 50 =
  12. 12.15 × 5 =
  13. 13.68 × 50 =
  14. 14.30 × 5 =
  15. 15.27 × 50 =
  16. 16.35 × 5 =
  17. 17.81 × 5 =
  18. 18.39 × 5 =
  19. 19.82 × 5 =
  20. 20.47 × 50 =
  21. 21.96 × 50 =
  22. 22.54 × 50 =
  23. 23.15 × 50 =
  24. 24.35 × 50 =
  25. 25.58 × 5 =
  26. 26.98 × 50 =
  27. 27.15 × 50 =
  28. 28.32 × 50 =
  29. 29.80 × 5 =
  30. 30.40 × 5 =
  31. 31.43 × 50 =
  32. 32.30 × 5 =
  33. 33.89 × 50 =
  34. 34.68 × 5 =
  35. 35.76 × 5 =
  36. 36.52 × 5 =
  37. 37.30 × 5 =
  38. 38.86 × 50 =
  39. 39.40 × 50 =
  40. 40.77 × 50 =

Answer key

  1. 3300
  2. 2650
  3. 110
  4. 950
  5. 2850
  6. 4750
  7. 420
  8. 1650
  9. 1950
  10. 440
  11. 850
  12. 75
  13. 3400
  14. 150
  15. 1350
  16. 175
  17. 405
  18. 195
  19. 410
  20. 2350
  21. 4800
  22. 2700
  23. 750
  24. 1750
  25. 290
  26. 4900
  27. 750
  28. 1600
  29. 400
  30. 200
  31. 2150
  32. 150
  33. 4450
  34. 340
  35. 380
  36. 260
  37. 150
  38. 4300
  39. 2000
  40. 3850

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