Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 123 · 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. 1.204 × 202 =
2. 2.305 × 307 =
3. 3.291 × 299 =
4. 4.599 × 599 =
5. 5.72 × 74 =
6. 6.597 × 597 =
7. 7.36 × 38 =
8. 8.59 × 56 =
9. 9.408 × 405 =
10. 10.291 × 296 =
11. 11.88 × 86 =
12. 12.24 × 23 =
13. 13.498 × 497 =
14. 14.56 × 57 =
15. 15.92 × 91 =
16. 16.608 × 602 =
17. 17.37 × 37 =
18. 18.52 × 53 =
19. 19.499 × 495 =
20. 20.52 × 51 =
21. 21.595 × 599 =
22. 22.297 × 296 =
23. 23.22 × 24 =
24. 24.403 × 409 =
25. 25.19 × 17 =
26. 26.501 × 502 =
27. 27.78 × 78 =
28. 28.504 × 504 =
29. 29.77 × 78 =
30. 30.86 × 86 =
31. 31.199 × 191 =
32. 32.509 × 507 =
33. 33.73 × 72 =
34. 34.89 × 89 =
35. 35.299 × 296 =
36. 36.201 × 206 =
37. 37.79 × 78 =
38. 38.404 × 409 =
39. 39.306 × 307 =
40. 40.503 × 501 =

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