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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 757 · 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. 1.44 × 5 =
  2. 2.42 × 5 =
  3. 3.31 × 5 =
  4. 4.32 × 5 =
  5. 5.64 × 50 =
  6. 6.91 × 50 =
  7. 7.42 × 5 =
  8. 8.21 × 5 =
  9. 9.83 × 5 =
  10. 10.65 × 50 =
  11. 11.50 × 50 =
  12. 12.37 × 5 =
  13. 13.75 × 50 =
  14. 14.80 × 5 =
  15. 15.54 × 50 =
  16. 16.61 × 50 =
  17. 17.86 × 50 =
  18. 18.40 × 5 =
  19. 19.95 × 50 =
  20. 20.52 × 50 =
  21. 21.20 × 50 =
  22. 22.42 × 5 =
  23. 23.58 × 50 =
  24. 24.74 × 5 =
  25. 25.81 × 5 =
  26. 26.58 × 5 =
  27. 27.86 × 5 =
  28. 28.51 × 50 =
  29. 29.61 × 5 =
  30. 30.64 × 5 =
  31. 31.48 × 50 =
  32. 32.38 × 5 =
  33. 33.66 × 5 =
  34. 34.49 × 5 =
  35. 35.91 × 5 =
  36. 36.38 × 5 =
  37. 37.57 × 50 =
  38. 38.40 × 5 =
  39. 39.12 × 50 =
  40. 40.65 × 5 =

Answer key

  1. 220
  2. 210
  3. 155
  4. 160
  5. 3200
  6. 4550
  7. 210
  8. 105
  9. 415
  10. 3250
  11. 2500
  12. 185
  13. 3750
  14. 400
  15. 2700
  16. 3050
  17. 4300
  18. 200
  19. 4750
  20. 2600
  21. 1000
  22. 210
  23. 2900
  24. 370
  25. 405
  26. 290
  27. 430
  28. 2550
  29. 305
  30. 320
  31. 2400
  32. 190
  33. 330
  34. 245
  35. 455
  36. 190
  37. 2850
  38. 200
  39. 600
  40. 325

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