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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 569 · 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. 1.40 × 50 =
  2. 2.37 × 50 =
  3. 3.36 × 50 =
  4. 4.22 × 5 =
  5. 5.67 × 50 =
  6. 6.13 × 5 =
  7. 7.89 × 50 =
  8. 8.34 × 50 =
  9. 9.34 × 5 =
  10. 10.19 × 5 =
  11. 11.23 × 5 =
  12. 12.49 × 5 =
  13. 13.27 × 5 =
  14. 14.96 × 5 =
  15. 15.41 × 5 =
  16. 16.76 × 50 =
  17. 17.23 × 50 =
  18. 18.83 × 50 =
  19. 19.34 × 50 =
  20. 20.14 × 5 =
  21. 21.18 × 5 =
  22. 22.32 × 50 =
  23. 23.47 × 5 =
  24. 24.55 × 50 =
  25. 25.52 × 5 =
  26. 26.58 × 5 =
  27. 27.51 × 5 =
  28. 28.70 × 50 =
  29. 29.33 × 5 =
  30. 30.76 × 5 =
  31. 31.65 × 5 =
  32. 32.63 × 5 =
  33. 33.84 × 5 =
  34. 34.72 × 5 =
  35. 35.80 × 50 =
  36. 36.37 × 50 =
  37. 37.53 × 50 =
  38. 38.49 × 50 =
  39. 39.75 × 5 =
  40. 40.17 × 5 =

Answer key

  1. 2000
  2. 1850
  3. 1800
  4. 110
  5. 3350
  6. 65
  7. 4450
  8. 1700
  9. 170
  10. 95
  11. 115
  12. 245
  13. 135
  14. 480
  15. 205
  16. 3800
  17. 1150
  18. 4150
  19. 1700
  20. 70
  21. 90
  22. 1600
  23. 235
  24. 2750
  25. 260
  26. 290
  27. 255
  28. 3500
  29. 165
  30. 380
  31. 325
  32. 315
  33. 420
  34. 360
  35. 4000
  36. 1850
  37. 2650
  38. 2450
  39. 375
  40. 85

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