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Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 653 · 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. 1.67 × 5 =
  2. 2.31 × 50 =
  3. 3.58 × 50 =
  4. 4.41 × 50 =
  5. 5.72 × 50 =
  6. 6.44 × 50 =
  7. 7.29 × 50 =
  8. 8.68 × 5 =
  9. 9.65 × 50 =
  10. 10.28 × 5 =
  11. 11.97 × 5 =
  12. 12.26 × 5 =
  13. 13.35 × 5 =
  14. 14.13 × 5 =
  15. 15.45 × 50 =
  16. 16.46 × 50 =
  17. 17.62 × 5 =
  18. 18.63 × 50 =
  19. 19.90 × 5 =
  20. 20.70 × 50 =
  21. 21.48 × 5 =
  22. 22.23 × 50 =
  23. 23.64 × 5 =
  24. 24.17 × 5 =
  25. 25.16 × 5 =
  26. 26.42 × 5 =
  27. 27.22 × 5 =
  28. 28.55 × 5 =
  29. 29.43 × 50 =
  30. 30.42 × 50 =
  31. 31.98 × 50 =
  32. 32.89 × 5 =
  33. 33.96 × 5 =
  34. 34.56 × 50 =
  35. 35.39 × 50 =
  36. 36.60 × 50 =
  37. 37.65 × 5 =
  38. 38.81 × 5 =
  39. 39.69 × 5 =
  40. 40.51 × 5 =

Answer key

  1. 335
  2. 1550
  3. 2900
  4. 2050
  5. 3600
  6. 2200
  7. 1450
  8. 340
  9. 3250
  10. 140
  11. 485
  12. 130
  13. 175
  14. 65
  15. 2250
  16. 2300
  17. 310
  18. 3150
  19. 450
  20. 3500
  21. 240
  22. 1150
  23. 320
  24. 85
  25. 80
  26. 210
  27. 110
  28. 275
  29. 2150
  30. 2100
  31. 4900
  32. 445
  33. 480
  34. 2800
  35. 1950
  36. 3000
  37. 325
  38. 405
  39. 345
  40. 255

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