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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 794 · 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. 1.68 × 5 =
  2. 2.48 × 50 =
  3. 3.37 × 5 =
  4. 4.90 × 5 =
  5. 5.50 × 5 =
  6. 6.88 × 5 =
  7. 7.26 × 5 =
  8. 8.23 × 50 =
  9. 9.18 × 50 =
  10. 10.49 × 5 =
  11. 11.58 × 5 =
  12. 12.23 × 50 =
  13. 13.86 × 5 =
  14. 14.31 × 5 =
  15. 15.82 × 5 =
  16. 16.76 × 5 =
  17. 17.25 × 50 =
  18. 18.24 × 50 =
  19. 19.32 × 50 =
  20. 20.15 × 5 =
  21. 21.31 × 50 =
  22. 22.47 × 5 =
  23. 23.13 × 50 =
  24. 24.57 × 5 =
  25. 25.34 × 5 =
  26. 26.84 × 50 =
  27. 27.57 × 5 =
  28. 28.91 × 5 =
  29. 29.66 × 5 =
  30. 30.88 × 5 =
  31. 31.83 × 50 =
  32. 32.30 × 5 =
  33. 33.92 × 5 =
  34. 34.67 × 5 =
  35. 35.66 × 5 =
  36. 36.89 × 50 =
  37. 37.28 × 5 =
  38. 38.27 × 50 =
  39. 39.40 × 50 =
  40. 40.29 × 50 =

Answer key

  1. 340
  2. 2400
  3. 185
  4. 450
  5. 250
  6. 440
  7. 130
  8. 1150
  9. 900
  10. 245
  11. 290
  12. 1150
  13. 430
  14. 155
  15. 410
  16. 380
  17. 1250
  18. 1200
  19. 1600
  20. 75
  21. 1550
  22. 235
  23. 650
  24. 285
  25. 170
  26. 4200
  27. 285
  28. 455
  29. 330
  30. 440
  31. 4150
  32. 150
  33. 460
  34. 335
  35. 330
  36. 4450
  37. 140
  38. 1350
  39. 2000
  40. 1450

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