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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 147 · 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. 1.38 × 5 =
  2. 2.72 × 50 =
  3. 3.44 × 5 =
  4. 4.53 × 50 =
  5. 5.63 × 5 =
  6. 6.65 × 50 =
  7. 7.60 × 50 =
  8. 8.26 × 5 =
  9. 9.20 × 5 =
  10. 10.24 × 5 =
  11. 11.96 × 50 =
  12. 12.66 × 50 =
  13. 13.59 × 50 =
  14. 14.15 × 5 =
  15. 15.40 × 50 =
  16. 16.84 × 50 =
  17. 17.49 × 50 =
  18. 18.59 × 5 =
  19. 19.51 × 50 =
  20. 20.54 × 5 =
  21. 21.13 × 50 =
  22. 22.34 × 5 =
  23. 23.20 × 5 =
  24. 24.62 × 50 =
  25. 25.25 × 50 =
  26. 26.35 × 50 =
  27. 27.87 × 5 =
  28. 28.69 × 50 =
  29. 29.33 × 50 =
  30. 30.52 × 5 =
  31. 31.12 × 5 =
  32. 32.38 × 5 =
  33. 33.71 × 50 =
  34. 34.58 × 5 =
  35. 35.85 × 50 =
  36. 36.40 × 5 =
  37. 37.22 × 50 =
  38. 38.94 × 5 =
  39. 39.37 × 5 =
  40. 40.75 × 50 =

Answer key

  1. 190
  2. 3600
  3. 220
  4. 2650
  5. 315
  6. 3250
  7. 3000
  8. 130
  9. 100
  10. 120
  11. 4800
  12. 3300
  13. 2950
  14. 75
  15. 2000
  16. 4200
  17. 2450
  18. 295
  19. 2550
  20. 270
  21. 650
  22. 170
  23. 100
  24. 3100
  25. 1250
  26. 1750
  27. 435
  28. 3450
  29. 1650
  30. 260
  31. 60
  32. 190
  33. 3550
  34. 290
  35. 4250
  36. 200
  37. 1100
  38. 470
  39. 185
  40. 3750

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