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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 462 · 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. 1.39 × 50 =
  2. 2.27 × 5 =
  3. 3.77 × 50 =
  4. 4.95 × 50 =
  5. 5.41 × 5 =
  6. 6.29 × 5 =
  7. 7.24 × 5 =
  8. 8.71 × 5 =
  9. 9.96 × 50 =
  10. 10.53 × 5 =
  11. 11.34 × 5 =
  12. 12.57 × 5 =
  13. 13.19 × 5 =
  14. 14.35 × 50 =
  15. 15.18 × 50 =
  16. 16.18 × 50 =
  17. 17.17 × 50 =
  18. 18.76 × 50 =
  19. 19.63 × 50 =
  20. 20.23 × 50 =
  21. 21.28 × 50 =
  22. 22.71 × 5 =
  23. 23.41 × 50 =
  24. 24.48 × 50 =
  25. 25.20 × 50 =
  26. 26.95 × 50 =
  27. 27.27 × 50 =
  28. 28.80 × 50 =
  29. 29.52 × 5 =
  30. 30.29 × 5 =
  31. 31.86 × 5 =
  32. 32.34 × 50 =
  33. 33.30 × 50 =
  34. 34.57 × 50 =
  35. 35.52 × 5 =
  36. 36.86 × 50 =
  37. 37.12 × 50 =
  38. 38.39 × 50 =
  39. 39.57 × 50 =
  40. 40.66 × 50 =

Answer key

  1. 1950
  2. 135
  3. 3850
  4. 4750
  5. 205
  6. 145
  7. 120
  8. 355
  9. 4800
  10. 265
  11. 170
  12. 285
  13. 95
  14. 1750
  15. 900
  16. 900
  17. 850
  18. 3800
  19. 3150
  20. 1150
  21. 1400
  22. 355
  23. 2050
  24. 2400
  25. 1000
  26. 4750
  27. 1350
  28. 4000
  29. 260
  30. 145
  31. 430
  32. 1700
  33. 1500
  34. 2850
  35. 260
  36. 4300
  37. 600
  38. 1950
  39. 2850
  40. 3300

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