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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 526 · 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. 1.26 × 5 =
  2. 2.34 × 50 =
  3. 3.83 × 50 =
  4. 4.62 × 50 =
  5. 5.50 × 50 =
  6. 6.92 × 50 =
  7. 7.50 × 5 =
  8. 8.59 × 5 =
  9. 9.85 × 50 =
  10. 10.62 × 5 =
  11. 11.80 × 5 =
  12. 12.73 × 50 =
  13. 13.40 × 5 =
  14. 14.76 × 50 =
  15. 15.39 × 50 =
  16. 16.16 × 50 =
  17. 17.32 × 50 =
  18. 18.74 × 50 =
  19. 19.79 × 50 =
  20. 20.66 × 5 =
  21. 21.66 × 5 =
  22. 22.50 × 5 =
  23. 23.28 × 5 =
  24. 24.34 × 5 =
  25. 25.94 × 5 =
  26. 26.85 × 50 =
  27. 27.35 × 5 =
  28. 28.65 × 50 =
  29. 29.84 × 5 =
  30. 30.92 × 50 =
  31. 31.23 × 5 =
  32. 32.46 × 50 =
  33. 33.90 × 50 =
  34. 34.66 × 5 =
  35. 35.75 × 50 =
  36. 36.23 × 5 =
  37. 37.16 × 50 =
  38. 38.89 × 50 =
  39. 39.75 × 50 =
  40. 40.65 × 50 =

Answer key

  1. 130
  2. 1700
  3. 4150
  4. 3100
  5. 2500
  6. 4600
  7. 250
  8. 295
  9. 4250
  10. 310
  11. 400
  12. 3650
  13. 200
  14. 3800
  15. 1950
  16. 800
  17. 1600
  18. 3700
  19. 3950
  20. 330
  21. 330
  22. 250
  23. 140
  24. 170
  25. 470
  26. 4250
  27. 175
  28. 3250
  29. 420
  30. 4600
  31. 115
  32. 2300
  33. 4500
  34. 330
  35. 3750
  36. 115
  37. 800
  38. 4450
  39. 3750
  40. 3250

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