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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 179 · 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. 1.93 × 5 =
  2. 2.29 × 5 =
  3. 3.22 × 5 =
  4. 4.42 × 50 =
  5. 5.75 × 50 =
  6. 6.43 × 5 =
  7. 7.71 × 50 =
  8. 8.45 × 5 =
  9. 9.40 × 50 =
  10. 10.75 × 5 =
  11. 11.22 × 50 =
  12. 12.17 × 50 =
  13. 13.97 × 50 =
  14. 14.29 × 5 =
  15. 15.86 × 5 =
  16. 16.28 × 5 =
  17. 17.97 × 5 =
  18. 18.85 × 5 =
  19. 19.28 × 50 =
  20. 20.76 × 5 =
  21. 21.52 × 50 =
  22. 22.31 × 5 =
  23. 23.74 × 5 =
  24. 24.47 × 50 =
  25. 25.48 × 5 =
  26. 26.55 × 5 =
  27. 27.28 × 5 =
  28. 28.54 × 5 =
  29. 29.87 × 50 =
  30. 30.25 × 5 =
  31. 31.28 × 5 =
  32. 32.41 × 50 =
  33. 33.84 × 50 =
  34. 34.35 × 5 =
  35. 35.55 × 5 =
  36. 36.58 × 50 =
  37. 37.51 × 50 =
  38. 38.31 × 50 =
  39. 39.79 × 50 =
  40. 40.14 × 50 =

Answer key

  1. 465
  2. 145
  3. 110
  4. 2100
  5. 3750
  6. 215
  7. 3550
  8. 225
  9. 2000
  10. 375
  11. 1100
  12. 850
  13. 4850
  14. 145
  15. 430
  16. 140
  17. 485
  18. 425
  19. 1400
  20. 380
  21. 2600
  22. 155
  23. 370
  24. 2350
  25. 240
  26. 275
  27. 140
  28. 270
  29. 4350
  30. 125
  31. 140
  32. 2050
  33. 4200
  34. 175
  35. 275
  36. 2900
  37. 2550
  38. 1550
  39. 3950
  40. 700

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