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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 252 · 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. 1.48 × 5 =
  2. 2.74 × 50 =
  3. 3.55 × 50 =
  4. 4.86 × 5 =
  5. 5.85 × 50 =
  6. 6.46 × 5 =
  7. 7.93 × 5 =
  8. 8.92 × 50 =
  9. 9.90 × 50 =
  10. 10.32 × 5 =
  11. 11.24 × 50 =
  12. 12.32 × 50 =
  13. 13.27 × 5 =
  14. 14.63 × 5 =
  15. 15.70 × 50 =
  16. 16.18 × 50 =
  17. 17.57 × 5 =
  18. 18.68 × 5 =
  19. 19.35 × 5 =
  20. 20.69 × 50 =
  21. 21.28 × 50 =
  22. 22.24 × 5 =
  23. 23.96 × 50 =
  24. 24.54 × 5 =
  25. 25.24 × 5 =
  26. 26.94 × 5 =
  27. 27.34 × 50 =
  28. 28.63 × 5 =
  29. 29.98 × 50 =
  30. 30.17 × 5 =
  31. 31.95 × 5 =
  32. 32.26 × 50 =
  33. 33.38 × 5 =
  34. 34.55 × 50 =
  35. 35.19 × 50 =
  36. 36.72 × 50 =
  37. 37.46 × 50 =
  38. 38.12 × 50 =
  39. 39.17 × 50 =
  40. 40.46 × 5 =

Answer key

  1. 240
  2. 3700
  3. 2750
  4. 430
  5. 4250
  6. 230
  7. 465
  8. 4600
  9. 4500
  10. 160
  11. 1200
  12. 1600
  13. 135
  14. 315
  15. 3500
  16. 900
  17. 285
  18. 340
  19. 175
  20. 3450
  21. 1400
  22. 120
  23. 4800
  24. 270
  25. 120
  26. 470
  27. 1700
  28. 315
  29. 4900
  30. 85
  31. 475
  32. 1300
  33. 190
  34. 2750
  35. 950
  36. 3600
  37. 2300
  38. 600
  39. 850
  40. 230

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