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Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 53 · 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. 1.496 × 496 =
  2. 2.41 × 44 =
  3. 3.507 × 504 =
  4. 4.77 × 79 =
  5. 5.493 × 497 =
  6. 6.28 × 26 =
  7. 7.191 × 198 =
  8. 8.81 × 81 =
  9. 9.201 × 203 =
  10. 10.502 × 501 =
  11. 11.36 × 37 =
  12. 12.94 × 91 =
  13. 13.77 × 79 =
  14. 14.77 × 76 =
  15. 15.291 × 297 =
  16. 16.27 × 26 =
  17. 17.47 × 47 =
  18. 18.22 × 24 =
  19. 19.62 × 61 =
  20. 20.301 × 305 =
  21. 21.46 × 49 =
  22. 22.32 × 32 =
  23. 23.592 × 595 =
  24. 24.205 × 201 =
  25. 25.499 × 493 =
  26. 26.609 × 606 =
  27. 27.593 × 594 =
  28. 28.293 × 299 =
  29. 29.409 × 409 =
  30. 30.491 × 493 =
  31. 31.46 × 48 =
  32. 32.498 × 491 =
  33. 33.82 × 81 =
  34. 34.303 × 303 =
  35. 35.498 × 496 =
  36. 36.198 × 196 =
  37. 37.88 × 88 =
  38. 38.84 × 83 =
  39. 39.19 × 16 =
  40. 40.66 × 66 =

Answer key

  1. 246016
  2. 1804
  3. 255528
  4. 6083
  5. 245021
  6. 728
  7. 37818
  8. 6561
  9. 40803
  10. 251502
  11. 1332
  12. 8554
  13. 6083
  14. 5852
  15. 86427
  16. 702
  17. 2209
  18. 528
  19. 3782
  20. 91805
  21. 2254
  22. 1024
  23. 352240
  24. 41205
  25. 246007
  26. 369054
  27. 352242
  28. 87607
  29. 167281
  30. 242063
  31. 2208
  32. 244518
  33. 6642
  34. 91809
  35. 247008
  36. 38808
  37. 7744
  38. 6972
  39. 304
  40. 4356

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