Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 766 · 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. 1.16 × 17 =
2. 2.301 × 305 =
3. 3.91 × 91 =
4. 4.493 × 498 =
5. 5.198 × 191 =
6. 6.403 × 405 =
7. 7.41 × 43 =
8. 8.399 × 397 =
9. 9.403 × 401 =
10. 10.69 × 66 =
11. 11.31 × 31 =
12. 12.38 × 38 =
13. 13.28 × 27 =
14. 14.392 × 398 =
15. 15.407 × 401 =
16. 16.197 × 195 =
17. 17.23 × 23 =
18. 18.292 × 298 =
19. 19.19 × 18 =
20. 20.66 × 69 =
21. 21.89 × 86 =
22. 22.32 × 32 =
23. 23.68 × 68 =
24. 24.33 × 32 =
25. 25.29 × 28 =
26. 26.88 × 89 =
27. 27.79 × 79 =
28. 28.503 × 504 =
29. 29.62 × 64 =
30. 30.26 × 28 =
31. 31.403 × 401 =
32. 32.67 × 68 =
33. 33.44 × 43 =
34. 34.602 × 607 =
35. 35.193 × 197 =
36. 36.493 × 498 =
37. 37.492 × 499 =
38. 38.409 × 402 =
39. 39.191 × 191 =
40. 40.306 × 304 =

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