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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 504 · 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. 1.39 × 5 =
  2. 2.34 × 5 =
  3. 3.64 × 5 =
  4. 4.84 × 50 =
  5. 5.20 × 50 =
  6. 6.68 × 5 =
  7. 7.18 × 5 =
  8. 8.53 × 5 =
  9. 9.74 × 5 =
  10. 10.98 × 5 =
  11. 11.36 × 50 =
  12. 12.90 × 5 =
  13. 13.33 × 50 =
  14. 14.31 × 50 =
  15. 15.19 × 50 =
  16. 16.19 × 5 =
  17. 17.19 × 5 =
  18. 18.49 × 50 =
  19. 19.52 × 5 =
  20. 20.17 × 5 =
  21. 21.20 × 5 =
  22. 22.51 × 5 =
  23. 23.29 × 50 =
  24. 24.59 × 5 =
  25. 25.85 × 5 =
  26. 26.95 × 50 =
  27. 27.60 × 5 =
  28. 28.13 × 5 =
  29. 29.58 × 5 =
  30. 30.65 × 50 =
  31. 31.84 × 5 =
  32. 32.32 × 5 =
  33. 33.28 × 50 =
  34. 34.80 × 50 =
  35. 35.59 × 50 =
  36. 36.31 × 5 =
  37. 37.55 × 50 =
  38. 38.66 × 5 =
  39. 39.58 × 5 =
  40. 40.18 × 50 =

Answer key

  1. 195
  2. 170
  3. 320
  4. 4200
  5. 1000
  6. 340
  7. 90
  8. 265
  9. 370
  10. 490
  11. 1800
  12. 450
  13. 1650
  14. 1550
  15. 950
  16. 95
  17. 95
  18. 2450
  19. 260
  20. 85
  21. 100
  22. 255
  23. 1450
  24. 295
  25. 425
  26. 4750
  27. 300
  28. 65
  29. 290
  30. 3250
  31. 420
  32. 160
  33. 1400
  34. 4000
  35. 2950
  36. 155
  37. 2750
  38. 330
  39. 290
  40. 900

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