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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 564 · 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. 1.68 × 5 =
  2. 2.91 × 50 =
  3. 3.86 × 5 =
  4. 4.23 × 50 =
  5. 5.24 × 5 =
  6. 6.46 × 5 =
  7. 7.21 × 5 =
  8. 8.94 × 50 =
  9. 9.87 × 5 =
  10. 10.78 × 5 =
  11. 11.61 × 5 =
  12. 12.46 × 50 =
  13. 13.39 × 5 =
  14. 14.71 × 50 =
  15. 15.18 × 5 =
  16. 16.55 × 50 =
  17. 17.34 × 5 =
  18. 18.20 × 50 =
  19. 19.56 × 5 =
  20. 20.14 × 50 =
  21. 21.43 × 50 =
  22. 22.98 × 50 =
  23. 23.77 × 5 =
  24. 24.54 × 50 =
  25. 25.18 × 50 =
  26. 26.73 × 5 =
  27. 27.78 × 5 =
  28. 28.74 × 5 =
  29. 29.27 × 5 =
  30. 30.74 × 5 =
  31. 31.33 × 50 =
  32. 32.55 × 5 =
  33. 33.97 × 5 =
  34. 34.23 × 50 =
  35. 35.92 × 50 =
  36. 36.43 × 50 =
  37. 37.32 × 5 =
  38. 38.93 × 50 =
  39. 39.65 × 5 =
  40. 40.18 × 5 =

Answer key

  1. 340
  2. 4550
  3. 430
  4. 1150
  5. 120
  6. 230
  7. 105
  8. 4700
  9. 435
  10. 390
  11. 305
  12. 2300
  13. 195
  14. 3550
  15. 90
  16. 2750
  17. 170
  18. 1000
  19. 280
  20. 700
  21. 2150
  22. 4900
  23. 385
  24. 2700
  25. 900
  26. 365
  27. 390
  28. 370
  29. 135
  30. 370
  31. 1650
  32. 275
  33. 485
  34. 1150
  35. 4600
  36. 2150
  37. 160
  38. 4650
  39. 325
  40. 90

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