← Multiply by 9, 99 and 999 lesson New set →

Multiply by 9 and 99 Worksheet

Vedic maths trick 11: Multiply by 9, 99 and 999 · Set 688 · 40 sums
TalentJR

The trick (Ekanyunena Purvena): Write the number with as many digits as there are nines (add zeros in front if needed). Left part: the number minus 1. Right part: “all from 9 and the last from 10” of the number. More digits than the nines (237 × 99)? Split off as many digits as there are nines (2 | 37): left = number − (front part + 1) = 234, right = complement of 37 = 63 → 23463.

NameDateTime takenScore ___ / 40
  1. 1.8 × 9 =
  2. 2.25152 × 999 =
  3. 3.881 × 999 =
  4. 4.14441 × 999 =
  5. 5.77 × 99 =
  6. 6.134 × 9 =
  7. 7.2085 × 99 =
  8. 8.2 × 9 =
  9. 9.4 × 9 =
  10. 10.8 × 9 =
  11. 11.91 × 99 =
  12. 12.7 × 99 =
  13. 13.833 × 999 =
  14. 14.26 × 9 =
  15. 15.216 × 9 =
  16. 16.932 × 999 =
  17. 17.227 × 9 =
  18. 18.2891 × 999 =
  19. 19.815 × 999 =
  20. 20.55 × 999 =
  21. 21.25791 × 999 =
  22. 22.637 × 999 =
  23. 23.151 × 9 =
  24. 24.8 × 9 =
  25. 25.4 × 9 =
  26. 26.203 × 999 =
  27. 27.91 × 9 =
  28. 28.8 × 9 =
  29. 29.25515 × 999 =
  30. 30.89 × 9 =
  31. 31.187 × 999 =
  32. 32.28 × 99 =
  33. 33.222 × 9 =
  34. 34.7 × 9 =
  35. 35.5 × 9 =
  36. 36.331 × 999 =
  37. 37.7 × 9 =
  38. 38.5 × 9 =
  39. 39.81 × 99 =
  40. 40.87 × 99 =

Answer key

  1. 72
  2. 25126848
  3. 880119
  4. 14426559
  5. 7623
  6. 1206
  7. 206415
  8. 18
  9. 36
  10. 72
  11. 9009
  12. 693
  13. 832167
  14. 234
  15. 1944
  16. 931068
  17. 2043
  18. 2888109
  19. 814185
  20. 54945
  21. 25765209
  22. 636363
  23. 1359
  24. 72
  25. 36
  26. 202797
  27. 819
  28. 72
  29. 25489485
  30. 801
  31. 186813
  32. 2772
  33. 1998
  34. 63
  35. 45
  36. 330669
  37. 63
  38. 45
  39. 8019
  40. 8613

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