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Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 821 · 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. 1.596 × 591 =
  2. 2.51 × 53 =
  3. 3.92 × 94 =
  4. 4.398 × 394 =
  5. 5.61 × 61 =
  6. 6.73 × 72 =
  7. 7.293 × 295 =
  8. 8.61 × 63 =
  9. 9.204 × 204 =
  10. 10.91 × 93 =
  11. 11.54 × 51 =
  12. 12.37 × 37 =
  13. 13.91 × 94 =
  14. 14.492 × 494 =
  15. 15.59 × 57 =
  16. 16.34 × 33 =
  17. 17.198 × 194 =
  18. 18.403 × 409 =
  19. 19.21 × 24 =
  20. 20.31 × 33 =
  21. 21.29 × 28 =
  22. 22.88 × 86 =
  23. 23.86 × 86 =
  24. 24.194 × 198 =
  25. 25.57 × 58 =
  26. 26.68 × 67 =
  27. 27.494 × 494 =
  28. 28.56 × 59 =
  29. 29.32 × 33 =
  30. 30.78 × 77 =
  31. 31.202 × 203 =
  32. 32.51 × 53 =
  33. 33.32 × 33 =
  34. 34.26 × 26 =
  35. 35.33 × 32 =
  36. 36.591 × 598 =
  37. 37.201 × 201 =
  38. 38.203 × 201 =
  39. 39.603 × 606 =
  40. 40.396 × 398 =

Answer key

  1. 352236
  2. 2703
  3. 8648
  4. 156812
  5. 3721
  6. 5256
  7. 86435
  8. 3843
  9. 41616
  10. 8463
  11. 2754
  12. 1369
  13. 8554
  14. 243048
  15. 3363
  16. 1122
  17. 38412
  18. 164827
  19. 504
  20. 1023
  21. 812
  22. 7568
  23. 7396
  24. 38412
  25. 3306
  26. 4556
  27. 244036
  28. 3304
  29. 1056
  30. 6006
  31. 41006
  32. 2703
  33. 1056
  34. 676
  35. 1056
  36. 353418
  37. 40401
  38. 40803
  39. 365418
  40. 157608

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