Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 835 · 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. 1.79 × 79 =
2. 2.46 × 47 =
3. 3.493 × 491 =
4. 4.506 × 506 =
5. 5.191 × 199 =
6. 6.82 × 82 =
7. 7.26 × 29 =
8. 8.74 × 72 =
9. 9.16 × 16 =
10. 10.93 × 92 =
11. 11.84 × 81 =
12. 12.77 × 77 =
13. 13.296 × 294 =
14. 14.83 × 82 =
15. 15.39 × 38 =
16. 16.63 × 63 =
17. 17.609 × 609 =
18. 18.199 × 197 =
19. 19.501 × 503 =
20. 20.93 × 94 =
21. 21.307 × 307 =
22. 22.91 × 94 =
23. 23.409 × 407 =
24. 24.82 × 84 =
25. 25.204 × 203 =
26. 26.605 × 607 =
27. 27.24 × 24 =
28. 28.396 × 395 =
29. 29.39 × 37 =
30. 30.68 × 69 =
31. 31.191 × 198 =
32. 32.401 × 405 =
33. 33.32 × 31 =
34. 34.296 × 291 =
35. 35.601 × 606 =
36. 36.295 × 293 =
37. 37.501 × 503 =
38. 38.302 × 308 =
39. 39.409 × 406 =
40. 40.68 × 67 =

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