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Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 995 · 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. 1.194 × 196 =
  2. 2.597 × 596 =
  3. 3.39 × 39 =
  4. 4.88 × 86 =
  5. 5.496 × 492 =
  6. 6.499 × 492 =
  7. 7.39 × 36 =
  8. 8.58 × 56 =
  9. 9.91 × 91 =
  10. 10.27 × 29 =
  11. 11.28 × 29 =
  12. 12.302 × 307 =
  13. 13.206 × 204 =
  14. 14.198 × 196 =
  15. 15.596 × 595 =
  16. 16.36 × 39 =
  17. 17.47 × 49 =
  18. 18.36 × 37 =
  19. 19.47 × 46 =
  20. 20.78 × 77 =
  21. 21.396 × 399 =
  22. 22.31 × 33 =
  23. 23.197 × 196 =
  24. 24.79 × 79 =
  25. 25.24 × 22 =
  26. 26.206 × 209 =
  27. 27.205 × 207 =
  28. 28.16 × 17 =
  29. 29.71 × 74 =
  30. 30.89 × 87 =
  31. 31.192 × 193 =
  32. 32.34 × 33 =
  33. 33.31 × 32 =
  34. 34.21 × 24 =
  35. 35.197 × 199 =
  36. 36.508 × 503 =
  37. 37.66 × 68 =
  38. 38.16 × 19 =
  39. 39.494 × 495 =
  40. 40.23 × 23 =

Answer key

  1. 38024
  2. 355812
  3. 1521
  4. 7568
  5. 244032
  6. 245508
  7. 1404
  8. 3248
  9. 8281
  10. 783
  11. 812
  12. 92714
  13. 42024
  14. 38808
  15. 354620
  16. 1404
  17. 2303
  18. 1332
  19. 2162
  20. 6006
  21. 158004
  22. 1023
  23. 38612
  24. 6241
  25. 528
  26. 43054
  27. 42435
  28. 272
  29. 5254
  30. 7743
  31. 37056
  32. 1122
  33. 992
  34. 504
  35. 39203
  36. 255524
  37. 4488
  38. 304
  39. 244530
  40. 529

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