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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 542 · 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. 1.62 × 5 =
  2. 2.36 × 5 =
  3. 3.32 × 50 =
  4. 4.88 × 50 =
  5. 5.17 × 5 =
  6. 6.46 × 50 =
  7. 7.76 × 50 =
  8. 8.18 × 5 =
  9. 9.57 × 5 =
  10. 10.66 × 5 =
  11. 11.23 × 50 =
  12. 12.14 × 5 =
  13. 13.59 × 5 =
  14. 14.52 × 50 =
  15. 15.14 × 5 =
  16. 16.83 × 50 =
  17. 17.28 × 50 =
  18. 18.97 × 50 =
  19. 19.35 × 5 =
  20. 20.50 × 5 =
  21. 21.26 × 50 =
  22. 22.24 × 50 =
  23. 23.16 × 5 =
  24. 24.20 × 50 =
  25. 25.78 × 5 =
  26. 26.37 × 5 =
  27. 27.26 × 5 =
  28. 28.65 × 50 =
  29. 29.77 × 50 =
  30. 30.35 × 5 =
  31. 31.43 × 50 =
  32. 32.74 × 5 =
  33. 33.68 × 50 =
  34. 34.14 × 50 =
  35. 35.33 × 50 =
  36. 36.93 × 50 =
  37. 37.33 × 50 =
  38. 38.77 × 5 =
  39. 39.13 × 50 =
  40. 40.57 × 5 =

Answer key

  1. 310
  2. 180
  3. 1600
  4. 4400
  5. 85
  6. 2300
  7. 3800
  8. 90
  9. 285
  10. 330
  11. 1150
  12. 70
  13. 295
  14. 2600
  15. 70
  16. 4150
  17. 1400
  18. 4850
  19. 175
  20. 250
  21. 1300
  22. 1200
  23. 80
  24. 1000
  25. 390
  26. 185
  27. 130
  28. 3250
  29. 3850
  30. 175
  31. 2150
  32. 370
  33. 3400
  34. 700
  35. 1650
  36. 4650
  37. 1650
  38. 385
  39. 650
  40. 285

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