← × 5 and × 50: halve first lesson New set →

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 426 · 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. 1.25 × 50 =
  2. 2.46 × 5 =
  3. 3.25 × 50 =
  4. 4.60 × 5 =
  5. 5.38 × 5 =
  6. 6.21 × 50 =
  7. 7.47 × 50 =
  8. 8.74 × 50 =
  9. 9.83 × 50 =
  10. 10.75 × 5 =
  11. 11.31 × 5 =
  12. 12.35 × 5 =
  13. 13.33 × 5 =
  14. 14.61 × 50 =
  15. 15.62 × 5 =
  16. 16.57 × 5 =
  17. 17.93 × 5 =
  18. 18.76 × 50 =
  19. 19.66 × 5 =
  20. 20.14 × 5 =
  21. 21.59 × 5 =
  22. 22.62 × 50 =
  23. 23.65 × 50 =
  24. 24.79 × 50 =
  25. 25.46 × 50 =
  26. 26.56 × 50 =
  27. 27.25 × 5 =
  28. 28.39 × 5 =
  29. 29.57 × 5 =
  30. 30.33 × 5 =
  31. 31.89 × 5 =
  32. 32.51 × 50 =
  33. 33.28 × 5 =
  34. 34.78 × 50 =
  35. 35.39 × 5 =
  36. 36.29 × 50 =
  37. 37.33 × 5 =
  38. 38.35 × 5 =
  39. 39.24 × 5 =
  40. 40.60 × 5 =

Answer key

  1. 1250
  2. 230
  3. 1250
  4. 300
  5. 190
  6. 1050
  7. 2350
  8. 3700
  9. 4150
  10. 375
  11. 155
  12. 175
  13. 165
  14. 3050
  15. 310
  16. 285
  17. 465
  18. 3800
  19. 330
  20. 70
  21. 295
  22. 3100
  23. 3250
  24. 3950
  25. 2300
  26. 2800
  27. 125
  28. 195
  29. 285
  30. 165
  31. 445
  32. 2550
  33. 140
  34. 3900
  35. 195
  36. 1450
  37. 165
  38. 175
  39. 120
  40. 300

Free speed calculation lessons, practice and worksheets at talentjr.in/speed-maths