Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 597 · 40 sums

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).

1. 1.69 × 67 =
2. 2.398 × 396 =
3. 3.37 × 38 =
4. 4.494 × 495 =
5. 5.492 × 499 =
6. 6.94 × 91 =
7. 7.206 × 206 =
8. 8.209 × 202 =
9. 9.407 × 406 =
10. 10.56 × 56 =
11. 11.291 × 293 =
12. 12.291 × 294 =
13. 13.56 × 56 =
14. 14.62 × 64 =
15. 15.26 × 29 =
16. 16.609 × 603 =
17. 17.308 × 309 =
18. 18.595 × 593 =
19. 19.199 × 197 =
20. 20.49 × 46 =
21. 21.33 × 34 =
22. 22.91 × 91 =
23. 23.72 × 72 =
24. 24.396 × 395 =
25. 25.82 × 82 =
26. 26.399 × 394 =
27. 27.59 × 57 =
28. 28.391 × 398 =
29. 29.192 × 193 =
30. 30.509 × 508 =
31. 31.509 × 503 =
32. 32.309 × 307 =
33. 33.608 × 603 =
34. 34.42 × 42 =
35. 35.407 × 406 =
36. 36.67 × 67 =
37. 37.84 × 81 =
38. 38.89 × 89 =
39. 39.37 × 38 =
40. 40.31 × 33 =

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