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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 290 · 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. 1.87 × 5 =
  2. 2.40 × 5 =
  3. 3.69 × 50 =
  4. 4.48 × 5 =
  5. 5.21 × 5 =
  6. 6.46 × 50 =
  7. 7.17 × 50 =
  8. 8.39 × 5 =
  9. 9.49 × 50 =
  10. 10.92 × 5 =
  11. 11.47 × 50 =
  12. 12.78 × 5 =
  13. 13.85 × 50 =
  14. 14.58 × 50 =
  15. 15.34 × 50 =
  16. 16.77 × 5 =
  17. 17.74 × 50 =
  18. 18.49 × 5 =
  19. 19.44 × 50 =
  20. 20.85 × 5 =
  21. 21.63 × 50 =
  22. 22.28 × 50 =
  23. 23.27 × 5 =
  24. 24.42 × 5 =
  25. 25.92 × 5 =
  26. 26.81 × 50 =
  27. 27.48 × 5 =
  28. 28.41 × 5 =
  29. 29.57 × 5 =
  30. 30.29 × 5 =
  31. 31.79 × 5 =
  32. 32.83 × 5 =
  33. 33.13 × 50 =
  34. 34.42 × 50 =
  35. 35.43 × 50 =
  36. 36.97 × 5 =
  37. 37.14 × 50 =
  38. 38.98 × 50 =
  39. 39.32 × 50 =
  40. 40.21 × 5 =

Answer key

  1. 435
  2. 200
  3. 3450
  4. 240
  5. 105
  6. 2300
  7. 850
  8. 195
  9. 2450
  10. 460
  11. 2350
  12. 390
  13. 4250
  14. 2900
  15. 1700
  16. 385
  17. 3700
  18. 245
  19. 2200
  20. 425
  21. 3150
  22. 1400
  23. 135
  24. 210
  25. 460
  26. 4050
  27. 240
  28. 205
  29. 285
  30. 145
  31. 395
  32. 415
  33. 650
  34. 2100
  35. 2150
  36. 485
  37. 700
  38. 4900
  39. 1600
  40. 105

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