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Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 825 · 40 sums
TalentJR

The trick (Anurupyena): Pick the working base (like 40 = 4 × 10 or 300 = 3 × 100) and write each number’s difference from it. Cross-add as in trick 3, then multiply that left part by 4 (or 3, 5…). Right part: multiply the differences — 1 digit for a × 10 base, 2 digits for a × 100 base (carry the extra).

NameDateTime takenScore ___ / 40
  1. 1.592 × 596 =
  2. 2.57 × 56 =
  3. 3.398 × 392 =
  4. 4.205 × 207 =
  5. 5.46 × 48 =
  6. 6.79 × 78 =
  7. 7.58 × 56 =
  8. 8.591 × 593 =
  9. 9.32 × 34 =
  10. 10.303 × 307 =
  11. 11.92 × 91 =
  12. 12.401 × 406 =
  13. 13.199 × 196 =
  14. 14.595 × 594 =
  15. 15.78 × 76 =
  16. 16.398 × 393 =
  17. 17.88 × 89 =
  18. 18.302 × 309 =
  19. 19.33 × 33 =
  20. 20.306 × 309 =
  21. 21.601 × 605 =
  22. 22.36 × 39 =
  23. 23.36 × 36 =
  24. 24.79 × 77 =
  25. 25.89 × 87 =
  26. 26.41 × 43 =
  27. 27.56 × 57 =
  28. 28.86 × 88 =
  29. 29.301 × 301 =
  30. 30.32 × 34 =
  31. 31.409 × 404 =
  32. 32.596 × 597 =
  33. 33.17 × 17 =
  34. 34.293 × 298 =
  35. 35.79 × 76 =
  36. 36.197 × 195 =
  37. 37.391 × 398 =
  38. 38.19 × 19 =
  39. 39.308 × 309 =
  40. 40.291 × 294 =

Answer key

  1. 352832
  2. 3192
  3. 156016
  4. 42435
  5. 2208
  6. 6162
  7. 3248
  8. 350463
  9. 1088
  10. 93021
  11. 8372
  12. 162806
  13. 39004
  14. 353430
  15. 5928
  16. 156414
  17. 7832
  18. 93318
  19. 1089
  20. 94554
  21. 363605
  22. 1404
  23. 1296
  24. 6083
  25. 7743
  26. 1763
  27. 3192
  28. 7568
  29. 90601
  30. 1088
  31. 165236
  32. 355812
  33. 289
  34. 87314
  35. 6004
  36. 38415
  37. 155618
  38. 361
  39. 95172
  40. 85554

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