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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 645 · 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. 1.37 × 5 =
  2. 2.40 × 50 =
  3. 3.52 × 5 =
  4. 4.49 × 50 =
  5. 5.15 × 5 =
  6. 6.37 × 50 =
  7. 7.68 × 5 =
  8. 8.29 × 50 =
  9. 9.37 × 50 =
  10. 10.65 × 50 =
  11. 11.12 × 5 =
  12. 12.37 × 5 =
  13. 13.60 × 50 =
  14. 14.89 × 5 =
  15. 15.20 × 5 =
  16. 16.19 × 5 =
  17. 17.30 × 5 =
  18. 18.13 × 5 =
  19. 19.95 × 50 =
  20. 20.70 × 50 =
  21. 21.69 × 50 =
  22. 22.73 × 5 =
  23. 23.31 × 5 =
  24. 24.56 × 5 =
  25. 25.53 × 5 =
  26. 26.70 × 5 =
  27. 27.53 × 50 =
  28. 28.95 × 5 =
  29. 29.66 × 5 =
  30. 30.73 × 5 =
  31. 31.34 × 5 =
  32. 32.37 × 5 =
  33. 33.53 × 50 =
  34. 34.16 × 5 =
  35. 35.42 × 5 =
  36. 36.61 × 50 =
  37. 37.62 × 50 =
  38. 38.23 × 50 =
  39. 39.14 × 5 =
  40. 40.28 × 50 =

Answer key

  1. 185
  2. 2000
  3. 260
  4. 2450
  5. 75
  6. 1850
  7. 340
  8. 1450
  9. 1850
  10. 3250
  11. 60
  12. 185
  13. 3000
  14. 445
  15. 100
  16. 95
  17. 150
  18. 65
  19. 4750
  20. 3500
  21. 3450
  22. 365
  23. 155
  24. 280
  25. 265
  26. 350
  27. 2650
  28. 475
  29. 330
  30. 365
  31. 170
  32. 185
  33. 2650
  34. 80
  35. 210
  36. 3050
  37. 3100
  38. 1150
  39. 70
  40. 1400

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