Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 80 · 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. 1.41 × 44 =
2. 2.403 × 406 =
3. 3.48 × 48 =
4. 4.19 × 16 =
5. 5.394 × 392 =
6. 6.61 × 61 =
7. 7.402 × 402 =
8. 8.93 × 92 =
9. 9.405 × 405 =
10. 10.606 × 609 =
11. 11.193 × 191 =
12. 12.291 × 294 =
13. 13.38 × 37 =
14. 14.43 × 41 =
15. 15.41 × 41 =
16. 16.66 × 66 =
17. 17.69 × 66 =
18. 18.67 × 66 =
19. 19.493 × 493 =
20. 20.394 × 391 =
21. 21.88 × 88 =
22. 22.302 × 306 =
23. 23.409 × 408 =
24. 24.66 × 66 =
25. 25.499 × 492 =
26. 26.83 × 84 =
27. 27.599 × 597 =
28. 28.82 × 81 =
29. 29.292 × 298 =
30. 30.89 × 88 =
31. 31.37 × 37 =
32. 32.68 × 66 =
33. 33.508 × 506 =
34. 34.52 × 52 =
35. 35.39 × 36 =
36. 36.94 × 91 =
37. 37.71 × 74 =
38. 38.82 × 82 =
39. 39.86 × 89 =
40. 40.406 × 403 =

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