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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 184 · 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. 1.87 × 50 =
  2. 2.15 × 5 =
  3. 3.98 × 5 =
  4. 4.26 × 50 =
  5. 5.59 × 50 =
  6. 6.91 × 50 =
  7. 7.18 × 5 =
  8. 8.32 × 50 =
  9. 9.69 × 50 =
  10. 10.80 × 50 =
  11. 11.50 × 5 =
  12. 12.30 × 50 =
  13. 13.32 × 50 =
  14. 14.32 × 5 =
  15. 15.51 × 50 =
  16. 16.35 × 5 =
  17. 17.20 × 5 =
  18. 18.53 × 5 =
  19. 19.12 × 5 =
  20. 20.23 × 50 =
  21. 21.23 × 50 =
  22. 22.65 × 5 =
  23. 23.19 × 5 =
  24. 24.47 × 5 =
  25. 25.64 × 5 =
  26. 26.27 × 50 =
  27. 27.12 × 5 =
  28. 28.83 × 5 =
  29. 29.83 × 5 =
  30. 30.42 × 50 =
  31. 31.42 × 50 =
  32. 32.98 × 50 =
  33. 33.57 × 50 =
  34. 34.95 × 5 =
  35. 35.55 × 5 =
  36. 36.63 × 5 =
  37. 37.45 × 50 =
  38. 38.97 × 50 =
  39. 39.82 × 50 =
  40. 40.59 × 5 =

Answer key

  1. 4350
  2. 75
  3. 490
  4. 1300
  5. 2950
  6. 4550
  7. 90
  8. 1600
  9. 3450
  10. 4000
  11. 250
  12. 1500
  13. 1600
  14. 160
  15. 2550
  16. 175
  17. 100
  18. 265
  19. 60
  20. 1150
  21. 1150
  22. 325
  23. 95
  24. 235
  25. 320
  26. 1350
  27. 60
  28. 415
  29. 415
  30. 2100
  31. 2100
  32. 4900
  33. 2850
  34. 475
  35. 275
  36. 315
  37. 2250
  38. 4850
  39. 4100
  40. 295

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