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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 169 · 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. 1.98 × 50 =
  2. 2.80 × 50 =
  3. 3.19 × 5 =
  4. 4.58 × 5 =
  5. 5.39 × 5 =
  6. 6.22 × 50 =
  7. 7.66 × 5 =
  8. 8.44 × 5 =
  9. 9.62 × 50 =
  10. 10.92 × 50 =
  11. 11.96 × 5 =
  12. 12.43 × 50 =
  13. 13.82 × 5 =
  14. 14.91 × 5 =
  15. 15.96 × 5 =
  16. 16.31 × 5 =
  17. 17.35 × 5 =
  18. 18.93 × 5 =
  19. 19.82 × 5 =
  20. 20.73 × 50 =
  21. 21.77 × 5 =
  22. 22.86 × 5 =
  23. 23.19 × 50 =
  24. 24.66 × 50 =
  25. 25.13 × 5 =
  26. 26.16 × 5 =
  27. 27.66 × 5 =
  28. 28.23 × 50 =
  29. 29.88 × 50 =
  30. 30.27 × 5 =
  31. 31.45 × 5 =
  32. 32.19 × 5 =
  33. 33.91 × 50 =
  34. 34.36 × 50 =
  35. 35.25 × 5 =
  36. 36.50 × 50 =
  37. 37.64 × 50 =
  38. 38.61 × 5 =
  39. 39.92 × 50 =
  40. 40.67 × 5 =

Answer key

  1. 4900
  2. 4000
  3. 95
  4. 290
  5. 195
  6. 1100
  7. 330
  8. 220
  9. 3100
  10. 4600
  11. 480
  12. 2150
  13. 410
  14. 455
  15. 480
  16. 155
  17. 175
  18. 465
  19. 410
  20. 3650
  21. 385
  22. 430
  23. 950
  24. 3300
  25. 65
  26. 80
  27. 330
  28. 1150
  29. 4400
  30. 135
  31. 225
  32. 95
  33. 4550
  34. 1800
  35. 125
  36. 2500
  37. 3200
  38. 305
  39. 4600
  40. 335

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