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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 583 · 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. 1.22 × 5 =
  2. 2.57 × 50 =
  3. 3.25 × 50 =
  4. 4.76 × 5 =
  5. 5.66 × 50 =
  6. 6.59 × 5 =
  7. 7.70 × 50 =
  8. 8.61 × 5 =
  9. 9.76 × 5 =
  10. 10.21 × 5 =
  11. 11.16 × 5 =
  12. 12.77 × 50 =
  13. 13.26 × 5 =
  14. 14.13 × 50 =
  15. 15.16 × 5 =
  16. 16.26 × 5 =
  17. 17.28 × 50 =
  18. 18.69 × 50 =
  19. 19.44 × 5 =
  20. 20.19 × 50 =
  21. 21.79 × 5 =
  22. 22.37 × 50 =
  23. 23.88 × 5 =
  24. 24.71 × 5 =
  25. 25.42 × 5 =
  26. 26.91 × 50 =
  27. 27.86 × 5 =
  28. 28.82 × 50 =
  29. 29.66 × 50 =
  30. 30.34 × 5 =
  31. 31.49 × 5 =
  32. 32.69 × 50 =
  33. 33.49 × 50 =
  34. 34.58 × 50 =
  35. 35.36 × 50 =
  36. 36.25 × 50 =
  37. 37.18 × 50 =
  38. 38.54 × 50 =
  39. 39.93 × 50 =
  40. 40.95 × 5 =

Answer key

  1. 110
  2. 2850
  3. 1250
  4. 380
  5. 3300
  6. 295
  7. 3500
  8. 305
  9. 380
  10. 105
  11. 80
  12. 3850
  13. 130
  14. 650
  15. 80
  16. 130
  17. 1400
  18. 3450
  19. 220
  20. 950
  21. 395
  22. 1850
  23. 440
  24. 355
  25. 210
  26. 4550
  27. 430
  28. 4100
  29. 3300
  30. 170
  31. 245
  32. 3450
  33. 2450
  34. 2900
  35. 1800
  36. 1250
  37. 900
  38. 2700
  39. 4650
  40. 475

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