Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 66 · 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. 1.81 × 83 =
2. 2.196 × 191 =
3. 3.499 × 497 =
4. 4.501 × 504 =
5. 5.204 × 206 =
6. 6.78 × 77 =
7. 7.26 × 29 =
8. 8.496 × 494 =
9. 9.307 × 303 =
10. 10.192 × 195 =
11. 11.404 × 406 =
12. 12.201 × 206 =
13. 13.596 × 596 =
14. 14.198 × 195 =
15. 15.72 × 74 =
16. 16.24 × 23 =
17. 17.509 × 503 =
18. 18.295 × 292 =
19. 19.56 × 56 =
20. 20.52 × 52 =
21. 21.393 × 397 =
22. 22.59 × 56 =
23. 23.606 × 609 =
24. 24.62 × 63 =
25. 25.17 × 17 =
26. 26.403 × 406 =
27. 27.44 × 41 =
28. 28.52 × 53 =
29. 29.198 × 191 =
30. 30.297 × 293 =
31. 31.83 × 84 =
32. 32.66 × 67 =
33. 33.79 × 79 =
34. 34.59 × 59 =
35. 35.29 × 26 =
36. 36.66 × 69 =
37. 37.199 × 196 =
38. 38.31 × 32 =
39. 39.67 × 66 =
40. 40.53 × 51 =

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