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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 664 · 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. 1.92 × 50 =
  2. 2.31 × 5 =
  3. 3.65 × 5 =
  4. 4.30 × 50 =
  5. 5.55 × 50 =
  6. 6.27 × 50 =
  7. 7.50 × 5 =
  8. 8.17 × 5 =
  9. 9.35 × 50 =
  10. 10.44 × 5 =
  11. 11.73 × 5 =
  12. 12.17 × 5 =
  13. 13.54 × 5 =
  14. 14.56 × 5 =
  15. 15.20 × 50 =
  16. 16.64 × 50 =
  17. 17.65 × 5 =
  18. 18.44 × 50 =
  19. 19.75 × 50 =
  20. 20.72 × 5 =
  21. 21.18 × 5 =
  22. 22.33 × 5 =
  23. 23.55 × 50 =
  24. 24.45 × 50 =
  25. 25.30 × 50 =
  26. 26.33 × 50 =
  27. 27.62 × 50 =
  28. 28.30 × 50 =
  29. 29.22 × 50 =
  30. 30.36 × 50 =
  31. 31.52 × 50 =
  32. 32.71 × 50 =
  33. 33.71 × 50 =
  34. 34.98 × 5 =
  35. 35.45 × 5 =
  36. 36.54 × 50 =
  37. 37.28 × 5 =
  38. 38.71 × 50 =
  39. 39.22 × 50 =
  40. 40.22 × 5 =

Answer key

  1. 4600
  2. 155
  3. 325
  4. 1500
  5. 2750
  6. 1350
  7. 250
  8. 85
  9. 1750
  10. 220
  11. 365
  12. 85
  13. 270
  14. 280
  15. 1000
  16. 3200
  17. 325
  18. 2200
  19. 3750
  20. 360
  21. 90
  22. 165
  23. 2750
  24. 2250
  25. 1500
  26. 1650
  27. 3100
  28. 1500
  29. 1100
  30. 1800
  31. 2600
  32. 3550
  33. 3550
  34. 490
  35. 225
  36. 2700
  37. 140
  38. 3550
  39. 1100
  40. 110

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