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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 800 · 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. 1.31 × 5 =
  2. 2.84 × 5 =
  3. 3.70 × 5 =
  4. 4.35 × 5 =
  5. 5.67 × 5 =
  6. 6.20 × 50 =
  7. 7.49 × 50 =
  8. 8.36 × 5 =
  9. 9.24 × 5 =
  10. 10.68 × 5 =
  11. 11.19 × 50 =
  12. 12.27 × 5 =
  13. 13.70 × 5 =
  14. 14.43 × 5 =
  15. 15.24 × 50 =
  16. 16.97 × 5 =
  17. 17.85 × 50 =
  18. 18.29 × 5 =
  19. 19.23 × 5 =
  20. 20.49 × 5 =
  21. 21.86 × 50 =
  22. 22.44 × 50 =
  23. 23.29 × 5 =
  24. 24.14 × 5 =
  25. 25.74 × 50 =
  26. 26.62 × 5 =
  27. 27.12 × 5 =
  28. 28.41 × 5 =
  29. 29.83 × 5 =
  30. 30.41 × 50 =
  31. 31.49 × 5 =
  32. 32.89 × 5 =
  33. 33.98 × 5 =
  34. 34.54 × 5 =
  35. 35.61 × 50 =
  36. 36.91 × 5 =
  37. 37.13 × 50 =
  38. 38.78 × 50 =
  39. 39.87 × 50 =
  40. 40.51 × 5 =

Answer key

  1. 155
  2. 420
  3. 350
  4. 175
  5. 335
  6. 1000
  7. 2450
  8. 180
  9. 120
  10. 340
  11. 950
  12. 135
  13. 350
  14. 215
  15. 1200
  16. 485
  17. 4250
  18. 145
  19. 115
  20. 245
  21. 4300
  22. 2200
  23. 145
  24. 70
  25. 3700
  26. 310
  27. 60
  28. 205
  29. 415
  30. 2050
  31. 245
  32. 445
  33. 490
  34. 270
  35. 3050
  36. 455
  37. 650
  38. 3900
  39. 4350
  40. 255

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