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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 318 · 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. 1.12 × 50 =
  2. 2.94 × 5 =
  3. 3.20 × 5 =
  4. 4.33 × 50 =
  5. 5.27 × 50 =
  6. 6.23 × 5 =
  7. 7.34 × 50 =
  8. 8.66 × 5 =
  9. 9.56 × 5 =
  10. 10.91 × 5 =
  11. 11.46 × 5 =
  12. 12.87 × 50 =
  13. 13.22 × 5 =
  14. 14.97 × 5 =
  15. 15.28 × 5 =
  16. 16.86 × 50 =
  17. 17.58 × 5 =
  18. 18.15 × 50 =
  19. 19.21 × 5 =
  20. 20.59 × 5 =
  21. 21.28 × 50 =
  22. 22.33 × 5 =
  23. 23.90 × 5 =
  24. 24.92 × 50 =
  25. 25.47 × 5 =
  26. 26.87 × 5 =
  27. 27.51 × 50 =
  28. 28.38 × 50 =
  29. 29.38 × 5 =
  30. 30.52 × 5 =
  31. 31.71 × 50 =
  32. 32.75 × 50 =
  33. 33.45 × 5 =
  34. 34.21 × 5 =
  35. 35.36 × 50 =
  36. 36.95 × 5 =
  37. 37.17 × 5 =
  38. 38.26 × 5 =
  39. 39.60 × 50 =
  40. 40.81 × 50 =

Answer key

  1. 600
  2. 470
  3. 100
  4. 1650
  5. 1350
  6. 115
  7. 1700
  8. 330
  9. 280
  10. 455
  11. 230
  12. 4350
  13. 110
  14. 485
  15. 140
  16. 4300
  17. 290
  18. 750
  19. 105
  20. 295
  21. 1400
  22. 165
  23. 450
  24. 4600
  25. 235
  26. 435
  27. 2550
  28. 1900
  29. 190
  30. 260
  31. 3550
  32. 3750
  33. 225
  34. 105
  35. 1800
  36. 475
  37. 85
  38. 130
  39. 3000
  40. 4050

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