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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 793 · 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. 1.42 × 5 =
  2. 2.20 × 5 =
  3. 3.22 × 5 =
  4. 4.19 × 5 =
  5. 5.20 × 5 =
  6. 6.43 × 5 =
  7. 7.72 × 5 =
  8. 8.92 × 50 =
  9. 9.30 × 5 =
  10. 10.82 × 50 =
  11. 11.32 × 5 =
  12. 12.25 × 5 =
  13. 13.19 × 50 =
  14. 14.79 × 5 =
  15. 15.68 × 5 =
  16. 16.26 × 50 =
  17. 17.86 × 5 =
  18. 18.52 × 5 =
  19. 19.98 × 50 =
  20. 20.67 × 5 =
  21. 21.66 × 5 =
  22. 22.57 × 50 =
  23. 23.49 × 50 =
  24. 24.31 × 50 =
  25. 25.35 × 5 =
  26. 26.85 × 5 =
  27. 27.26 × 50 =
  28. 28.58 × 5 =
  29. 29.66 × 5 =
  30. 30.12 × 5 =
  31. 31.17 × 50 =
  32. 32.77 × 5 =
  33. 33.30 × 5 =
  34. 34.55 × 50 =
  35. 35.34 × 50 =
  36. 36.64 × 50 =
  37. 37.53 × 50 =
  38. 38.89 × 50 =
  39. 39.71 × 50 =
  40. 40.91 × 5 =

Answer key

  1. 210
  2. 100
  3. 110
  4. 95
  5. 100
  6. 215
  7. 360
  8. 4600
  9. 150
  10. 4100
  11. 160
  12. 125
  13. 950
  14. 395
  15. 340
  16. 1300
  17. 430
  18. 260
  19. 4900
  20. 335
  21. 330
  22. 2850
  23. 2450
  24. 1550
  25. 175
  26. 425
  27. 1300
  28. 290
  29. 330
  30. 60
  31. 850
  32. 385
  33. 150
  34. 2750
  35. 1700
  36. 3200
  37. 2650
  38. 4450
  39. 3550
  40. 455

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