Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 236 · 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. 1.69 × 68 =
2. 2.592 × 591 =
3. 3.508 × 506 =
4. 4.194 × 198 =
5. 5.64 × 64 =
6. 6.491 × 498 =
7. 7.32 × 33 =
8. 8.599 × 597 =
9. 9.56 × 57 =
10. 10.89 × 89 =
11. 11.201 × 204 =
12. 12.59 × 56 =
13. 13.492 × 493 =
14. 14.298 × 295 =
15. 15.197 × 199 =
16. 16.21 × 21 =
17. 17.405 × 402 =
18. 18.38 × 37 =
19. 19.496 × 495 =
20. 20.592 × 592 =
21. 21.52 × 53 =
22. 22.598 × 595 =
23. 23.499 × 499 =
24. 24.499 × 496 =
25. 25.88 × 89 =
26. 26.302 × 309 =
27. 27.84 × 83 =
28. 28.398 × 394 =
29. 29.393 × 399 =
30. 30.501 × 505 =
31. 31.604 × 607 =
32. 32.87 × 88 =
33. 33.603 × 602 =
34. 34.72 × 74 =
35. 35.74 × 72 =
36. 36.71 × 72 =
37. 37.93 × 93 =
38. 38.16 × 19 =
39. 39.595 × 594 =
40. 40.507 × 503 =

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