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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 604 · 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. 1.61 × 50 =
  2. 2.67 × 5 =
  3. 3.92 × 5 =
  4. 4.67 × 50 =
  5. 5.96 × 50 =
  6. 6.23 × 50 =
  7. 7.40 × 5 =
  8. 8.30 × 50 =
  9. 9.35 × 5 =
  10. 10.45 × 50 =
  11. 11.47 × 50 =
  12. 12.86 × 5 =
  13. 13.15 × 5 =
  14. 14.54 × 5 =
  15. 15.36 × 5 =
  16. 16.92 × 50 =
  17. 17.13 × 50 =
  18. 18.84 × 50 =
  19. 19.34 × 50 =
  20. 20.35 × 5 =
  21. 21.35 × 50 =
  22. 22.58 × 50 =
  23. 23.20 × 5 =
  24. 24.71 × 50 =
  25. 25.30 × 50 =
  26. 26.36 × 50 =
  27. 27.49 × 5 =
  28. 28.73 × 5 =
  29. 29.84 × 50 =
  30. 30.60 × 50 =
  31. 31.45 × 50 =
  32. 32.48 × 50 =
  33. 33.84 × 5 =
  34. 34.75 × 5 =
  35. 35.13 × 50 =
  36. 36.82 × 50 =
  37. 37.28 × 5 =
  38. 38.19 × 5 =
  39. 39.19 × 5 =
  40. 40.77 × 5 =

Answer key

  1. 3050
  2. 335
  3. 460
  4. 3350
  5. 4800
  6. 1150
  7. 200
  8. 1500
  9. 175
  10. 2250
  11. 2350
  12. 430
  13. 75
  14. 270
  15. 180
  16. 4600
  17. 650
  18. 4200
  19. 1700
  20. 175
  21. 1750
  22. 2900
  23. 100
  24. 3550
  25. 1500
  26. 1800
  27. 245
  28. 365
  29. 4200
  30. 3000
  31. 2250
  32. 2400
  33. 420
  34. 375
  35. 650
  36. 4100
  37. 140
  38. 95
  39. 95
  40. 385

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