Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 305 · 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. 1.52 × 52 =
2. 2.59 × 57 =
3. 3.505 × 508 =
4. 4.197 × 193 =
5. 5.508 × 508 =
6. 6.71 × 74 =
7. 7.603 × 602 =
8. 8.92 × 92 =
9. 9.24 × 21 =
10. 10.63 × 64 =
11. 11.593 × 594 =
12. 12.66 × 66 =
13. 13.33 × 34 =
14. 14.291 × 297 =
15. 15.392 × 395 =
16. 16.194 × 198 =
17. 17.292 × 299 =
18. 18.302 × 306 =
19. 19.76 × 77 =
20. 20.302 × 303 =
21. 21.409 × 405 =
22. 22.44 × 43 =
23. 23.403 × 401 =
24. 24.505 × 509 =
25. 25.64 × 61 =
26. 26.88 × 88 =
27. 27.71 × 73 =
28. 28.503 × 509 =
29. 29.81 × 82 =
30. 30.62 × 61 =
31. 31.592 × 594 =
32. 32.92 × 94 =
33. 33.191 × 197 =
34. 34.509 × 504 =
35. 35.91 × 91 =
36. 36.595 × 593 =
37. 37.21 × 21 =
38. 38.403 × 404 =
39. 39.397 × 399 =
40. 40.66 × 68 =

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