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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 599 · 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. 1.26 × 50 =
  2. 2.40 × 50 =
  3. 3.71 × 50 =
  4. 4.78 × 5 =
  5. 5.86 × 5 =
  6. 6.58 × 5 =
  7. 7.30 × 5 =
  8. 8.25 × 50 =
  9. 9.67 × 5 =
  10. 10.44 × 50 =
  11. 11.38 × 50 =
  12. 12.27 × 50 =
  13. 13.24 × 50 =
  14. 14.49 × 5 =
  15. 15.29 × 5 =
  16. 16.91 × 50 =
  17. 17.23 × 5 =
  18. 18.20 × 5 =
  19. 19.60 × 50 =
  20. 20.21 × 5 =
  21. 21.35 × 50 =
  22. 22.53 × 50 =
  23. 23.74 × 5 =
  24. 24.61 × 5 =
  25. 25.17 × 50 =
  26. 26.65 × 50 =
  27. 27.68 × 5 =
  28. 28.23 × 5 =
  29. 29.15 × 50 =
  30. 30.49 × 50 =
  31. 31.17 × 5 =
  32. 32.14 × 50 =
  33. 33.42 × 50 =
  34. 34.86 × 50 =
  35. 35.48 × 50 =
  36. 36.67 × 5 =
  37. 37.41 × 50 =
  38. 38.64 × 50 =
  39. 39.25 × 5 =
  40. 40.78 × 50 =

Answer key

  1. 1300
  2. 2000
  3. 3550
  4. 390
  5. 430
  6. 290
  7. 150
  8. 1250
  9. 335
  10. 2200
  11. 1900
  12. 1350
  13. 1200
  14. 245
  15. 145
  16. 4550
  17. 115
  18. 100
  19. 3000
  20. 105
  21. 1750
  22. 2650
  23. 370
  24. 305
  25. 850
  26. 3250
  27. 340
  28. 115
  29. 750
  30. 2450
  31. 85
  32. 700
  33. 2100
  34. 4300
  35. 2400
  36. 335
  37. 2050
  38. 3200
  39. 125
  40. 3900

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