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Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 956 · 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. 1.301 × 302 =
  2. 2.48 × 46 =
  3. 3.495 × 499 =
  4. 4.46 × 47 =
  5. 5.493 × 493 =
  6. 6.495 × 496 =
  7. 7.81 × 81 =
  8. 8.393 × 392 =
  9. 9.198 × 198 =
  10. 10.56 × 56 =
  11. 11.204 × 205 =
  12. 12.297 × 299 =
  13. 13.17 × 18 =
  14. 14.78 × 76 =
  15. 15.603 × 602 =
  16. 16.307 × 301 =
  17. 17.58 × 59 =
  18. 18.26 × 28 =
  19. 19.79 × 76 =
  20. 20.292 × 293 =
  21. 21.402 × 408 =
  22. 22.36 × 36 =
  23. 23.209 × 208 =
  24. 24.78 × 79 =
  25. 25.295 × 291 =
  26. 26.18 × 19 =
  27. 27.36 × 36 =
  28. 28.74 × 71 =
  29. 29.303 × 303 =
  30. 30.47 × 48 =
  31. 31.399 × 396 =
  32. 32.89 × 87 =
  33. 33.194 × 192 =
  34. 34.192 × 199 =
  35. 35.505 × 508 =
  36. 36.303 × 303 =
  37. 37.298 × 291 =
  38. 38.67 × 68 =
  39. 39.59 × 56 =
  40. 40.609 × 603 =

Answer key

  1. 90902
  2. 2208
  3. 247005
  4. 2162
  5. 243049
  6. 245520
  7. 6561
  8. 154056
  9. 39204
  10. 3136
  11. 41820
  12. 88803
  13. 306
  14. 5928
  15. 363006
  16. 92407
  17. 3422
  18. 728
  19. 6004
  20. 85556
  21. 164016
  22. 1296
  23. 43472
  24. 6162
  25. 85845
  26. 342
  27. 1296
  28. 5254
  29. 91809
  30. 2256
  31. 158004
  32. 7743
  33. 37248
  34. 38208
  35. 256540
  36. 91809
  37. 86718
  38. 4556
  39. 3304
  40. 367227

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