Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 635 · 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. 1.196 × 196 =
2. 2.23 × 21 =
3. 3.408 × 403 =
4. 4.508 × 504 =
5. 5.498 × 491 =
6. 6.499 × 495 =
7. 7.405 × 408 =
8. 8.23 × 21 =
9. 9.42 × 44 =
10. 10.494 × 492 =
11. 11.38 × 38 =
12. 12.391 × 391 =
13. 13.24 × 24 =
14. 14.63 × 62 =
15. 15.493 × 497 =
16. 16.16 × 16 =
17. 17.33 × 34 =
18. 18.195 × 191 =
19. 19.593 × 592 =
20. 20.306 × 301 =
21. 21.69 × 66 =
22. 22.62 × 62 =
23. 23.62 × 63 =
24. 24.16 × 19 =
25. 25.69 × 66 =
26. 26.84 × 84 =
27. 27.91 × 92 =
28. 28.494 × 498 =
29. 29.23 × 21 =
30. 30.57 × 57 =
31. 31.47 × 48 =
32. 32.497 × 498 =
33. 33.27 × 27 =
34. 34.209 × 209 =
35. 35.78 × 78 =
36. 36.198 × 197 =
37. 37.496 × 498 =
38. 38.82 × 83 =
39. 39.299 × 295 =
40. 40.392 × 393 =

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