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

Multiply by 5 and 50 Worksheet

Speed calculation lesson 7: × 5 and × 50: halve first · Set 316 · 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. 1.73 × 50 =
  2. 2.31 × 50 =
  3. 3.82 × 50 =
  4. 4.34 × 5 =
  5. 5.19 × 50 =
  6. 6.92 × 5 =
  7. 7.69 × 5 =
  8. 8.54 × 5 =
  9. 9.32 × 5 =
  10. 10.63 × 5 =
  11. 11.20 × 5 =
  12. 12.14 × 5 =
  13. 13.75 × 5 =
  14. 14.13 × 50 =
  15. 15.65 × 5 =
  16. 16.43 × 50 =
  17. 17.82 × 5 =
  18. 18.69 × 50 =
  19. 19.29 × 5 =
  20. 20.88 × 50 =
  21. 21.65 × 50 =
  22. 22.67 × 50 =
  23. 23.45 × 50 =
  24. 24.19 × 5 =
  25. 25.26 × 5 =
  26. 26.13 × 50 =
  27. 27.56 × 50 =
  28. 28.67 × 5 =
  29. 29.55 × 5 =
  30. 30.28 × 50 =
  31. 31.79 × 50 =
  32. 32.28 × 50 =
  33. 33.19 × 50 =
  34. 34.19 × 5 =
  35. 35.32 × 50 =
  36. 36.19 × 50 =
  37. 37.66 × 50 =
  38. 38.46 × 50 =
  39. 39.15 × 5 =
  40. 40.55 × 50 =

Answer key

  1. 3650
  2. 1550
  3. 4100
  4. 170
  5. 950
  6. 460
  7. 345
  8. 270
  9. 160
  10. 315
  11. 100
  12. 70
  13. 375
  14. 650
  15. 325
  16. 2150
  17. 410
  18. 3450
  19. 145
  20. 4400
  21. 3250
  22. 3350
  23. 2250
  24. 95
  25. 130
  26. 650
  27. 2800
  28. 335
  29. 275
  30. 1400
  31. 3950
  32. 1400
  33. 950
  34. 95
  35. 1600
  36. 950
  37. 3300
  38. 2300
  39. 75
  40. 2750

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