Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 165 · 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. 1.61 × 62 =
2. 2.61 × 63 =
3. 3.391 × 391 =
4. 4.38 × 36 =
5. 5.607 × 601 =
6. 6.197 × 198 =
7. 7.32 × 33 =
8. 8.403 × 406 =
9. 9.398 × 392 =
10. 10.67 × 68 =
11. 11.505 × 505 =
12. 12.597 × 592 =
13. 13.493 × 499 =
14. 14.81 × 82 =
15. 15.204 × 201 =
16. 16.83 × 84 =
17. 17.21 × 24 =
18. 18.17 × 17 =
19. 19.509 × 503 =
20. 20.599 × 597 =
21. 21.393 × 396 =
22. 22.83 × 83 =
23. 23.84 × 83 =
24. 24.601 × 609 =
25. 25.304 × 306 =
26. 26.72 × 73 =
27. 27.48 × 47 =
28. 28.71 × 71 =
29. 29.397 × 392 =
30. 30.42 × 41 =
31. 31.88 × 87 =
32. 32.38 × 38 =
33. 33.407 × 401 =
34. 34.17 × 16 =
35. 35.591 × 598 =
36. 36.16 × 16 =
37. 37.202 × 201 =
38. 38.27 × 29 =
39. 39.197 × 196 =
40. 40.49 × 49 =

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