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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 622 · 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. 1.25 × 5 =
  2. 2.62 × 50 =
  3. 3.61 × 50 =
  4. 4.44 × 5 =
  5. 5.84 × 5 =
  6. 6.50 × 5 =
  7. 7.68 × 50 =
  8. 8.50 × 5 =
  9. 9.88 × 50 =
  10. 10.20 × 50 =
  11. 11.67 × 5 =
  12. 12.72 × 50 =
  13. 13.22 × 50 =
  14. 14.54 × 50 =
  15. 15.87 × 5 =
  16. 16.95 × 5 =
  17. 17.97 × 50 =
  18. 18.34 × 5 =
  19. 19.21 × 5 =
  20. 20.12 × 50 =
  21. 21.31 × 5 =
  22. 22.25 × 5 =
  23. 23.14 × 5 =
  24. 24.35 × 5 =
  25. 25.93 × 50 =
  26. 26.73 × 5 =
  27. 27.80 × 5 =
  28. 28.71 × 50 =
  29. 29.76 × 50 =
  30. 30.15 × 50 =
  31. 31.90 × 5 =
  32. 32.85 × 50 =
  33. 33.30 × 5 =
  34. 34.67 × 5 =
  35. 35.13 × 5 =
  36. 36.55 × 50 =
  37. 37.46 × 50 =
  38. 38.92 × 50 =
  39. 39.62 × 5 =
  40. 40.61 × 5 =

Answer key

  1. 125
  2. 3100
  3. 3050
  4. 220
  5. 420
  6. 250
  7. 3400
  8. 250
  9. 4400
  10. 1000
  11. 335
  12. 3600
  13. 1100
  14. 2700
  15. 435
  16. 475
  17. 4850
  18. 170
  19. 105
  20. 600
  21. 155
  22. 125
  23. 70
  24. 175
  25. 4650
  26. 365
  27. 400
  28. 3550
  29. 3800
  30. 750
  31. 450
  32. 4250
  33. 150
  34. 335
  35. 65
  36. 2750
  37. 2300
  38. 4600
  39. 310
  40. 305

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