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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 521 · 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. 1.13 × 5 =
  2. 2.18 × 50 =
  3. 3.25 × 5 =
  4. 4.88 × 50 =
  5. 5.35 × 50 =
  6. 6.57 × 5 =
  7. 7.39 × 5 =
  8. 8.58 × 5 =
  9. 9.89 × 5 =
  10. 10.79 × 50 =
  11. 11.15 × 50 =
  12. 12.68 × 5 =
  13. 13.93 × 5 =
  14. 14.45 × 50 =
  15. 15.96 × 50 =
  16. 16.31 × 5 =
  17. 17.19 × 5 =
  18. 18.24 × 5 =
  19. 19.24 × 50 =
  20. 20.13 × 50 =
  21. 21.45 × 5 =
  22. 22.32 × 50 =
  23. 23.63 × 5 =
  24. 24.24 × 5 =
  25. 25.79 × 50 =
  26. 26.93 × 5 =
  27. 27.30 × 5 =
  28. 28.79 × 50 =
  29. 29.47 × 50 =
  30. 30.64 × 5 =
  31. 31.70 × 50 =
  32. 32.41 × 5 =
  33. 33.59 × 5 =
  34. 34.42 × 5 =
  35. 35.53 × 5 =
  36. 36.22 × 5 =
  37. 37.72 × 5 =
  38. 38.16 × 50 =
  39. 39.35 × 5 =
  40. 40.58 × 50 =

Answer key

  1. 65
  2. 900
  3. 125
  4. 4400
  5. 1750
  6. 285
  7. 195
  8. 290
  9. 445
  10. 3950
  11. 750
  12. 340
  13. 465
  14. 2250
  15. 4800
  16. 155
  17. 95
  18. 120
  19. 1200
  20. 650
  21. 225
  22. 1600
  23. 315
  24. 120
  25. 3950
  26. 465
  27. 150
  28. 3950
  29. 2350
  30. 320
  31. 3500
  32. 205
  33. 295
  34. 210
  35. 265
  36. 110
  37. 360
  38. 800
  39. 175
  40. 2900

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