Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 958 · 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. 2.207 × 207 =
3. 3.404 × 401 =
4. 4.599 × 595 =
5. 5.52 × 54 =
6. 6.495 × 494 =
7. 7.605 × 603 =
8. 8.205 × 201 =
9. 9.29 × 29 =
10. 10.594 × 595 =
11. 11.84 × 84 =
12. 12.503 × 507 =
13. 13.27 × 26 =
14. 14.503 × 506 =
15. 15.595 × 598 =
16. 16.509 × 508 =
17. 17.87 × 87 =
18. 18.401 × 409 =
19. 19.506 × 506 =
20. 20.199 × 192 =
21. 21.401 × 405 =
22. 22.401 × 406 =
23. 23.204 × 201 =
24. 24.53 × 51 =
25. 25.77 × 79 =
26. 26.608 × 608 =
27. 27.72 × 74 =
28. 28.54 × 53 =
29. 29.72 × 72 =
30. 30.201 × 204 =
31. 31.93 × 91 =
32. 32.94 × 92 =
33. 33.403 × 408 =
34. 34.94 × 93 =
35. 35.309 × 307 =
36. 36.19 × 19 =
37. 37.72 × 72 =
38. 38.298 × 297 =
39. 39.393 × 395 =
40. 40.92 × 94 =

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