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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 605 · 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. 1.98 × 5 =
  2. 2.95 × 5 =
  3. 3.16 × 50 =
  4. 4.83 × 50 =
  5. 5.30 × 50 =
  6. 6.89 × 50 =
  7. 7.98 × 5 =
  8. 8.74 × 50 =
  9. 9.42 × 50 =
  10. 10.45 × 50 =
  11. 11.63 × 50 =
  12. 12.64 × 5 =
  13. 13.46 × 5 =
  14. 14.81 × 5 =
  15. 15.92 × 50 =
  16. 16.86 × 50 =
  17. 17.67 × 50 =
  18. 18.95 × 50 =
  19. 19.31 × 50 =
  20. 20.17 × 5 =
  21. 21.96 × 5 =
  22. 22.12 × 5 =
  23. 23.27 × 5 =
  24. 24.73 × 50 =
  25. 25.62 × 5 =
  26. 26.17 × 50 =
  27. 27.60 × 50 =
  28. 28.80 × 50 =
  29. 29.87 × 5 =
  30. 30.86 × 5 =
  31. 31.47 × 5 =
  32. 32.97 × 50 =
  33. 33.30 × 50 =
  34. 34.89 × 5 =
  35. 35.15 × 50 =
  36. 36.80 × 50 =
  37. 37.18 × 5 =
  38. 38.50 × 5 =
  39. 39.89 × 50 =
  40. 40.85 × 5 =

Answer key

  1. 490
  2. 475
  3. 800
  4. 4150
  5. 1500
  6. 4450
  7. 490
  8. 3700
  9. 2100
  10. 2250
  11. 3150
  12. 320
  13. 230
  14. 405
  15. 4600
  16. 4300
  17. 3350
  18. 4750
  19. 1550
  20. 85
  21. 480
  22. 60
  23. 135
  24. 3650
  25. 310
  26. 850
  27. 3000
  28. 4000
  29. 435
  30. 430
  31. 235
  32. 4850
  33. 1500
  34. 445
  35. 750
  36. 4000
  37. 90
  38. 250
  39. 4450
  40. 425

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