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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 79 · 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. 1.35 × 5 =
  2. 2.74 × 5 =
  3. 3.80 × 50 =
  4. 4.88 × 50 =
  5. 5.63 × 50 =
  6. 6.40 × 5 =
  7. 7.38 × 5 =
  8. 8.26 × 50 =
  9. 9.44 × 50 =
  10. 10.88 × 5 =
  11. 11.32 × 5 =
  12. 12.79 × 50 =
  13. 13.98 × 5 =
  14. 14.31 × 50 =
  15. 15.86 × 5 =
  16. 16.20 × 50 =
  17. 17.33 × 5 =
  18. 18.82 × 5 =
  19. 19.28 × 50 =
  20. 20.25 × 50 =
  21. 21.36 × 5 =
  22. 22.85 × 50 =
  23. 23.77 × 5 =
  24. 24.22 × 5 =
  25. 25.77 × 50 =
  26. 26.42 × 50 =
  27. 27.70 × 50 =
  28. 28.16 × 50 =
  29. 29.34 × 50 =
  30. 30.29 × 5 =
  31. 31.21 × 5 =
  32. 32.35 × 5 =
  33. 33.63 × 5 =
  34. 34.33 × 5 =
  35. 35.58 × 50 =
  36. 36.19 × 50 =
  37. 37.37 × 5 =
  38. 38.68 × 50 =
  39. 39.86 × 5 =
  40. 40.25 × 5 =

Answer key

  1. 175
  2. 370
  3. 4000
  4. 4400
  5. 3150
  6. 200
  7. 190
  8. 1300
  9. 2200
  10. 440
  11. 160
  12. 3950
  13. 490
  14. 1550
  15. 430
  16. 1000
  17. 165
  18. 410
  19. 1400
  20. 1250
  21. 180
  22. 4250
  23. 385
  24. 110
  25. 3850
  26. 2100
  27. 3500
  28. 800
  29. 1700
  30. 145
  31. 105
  32. 175
  33. 315
  34. 165
  35. 2900
  36. 950
  37. 185
  38. 3400
  39. 430
  40. 125

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