Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 923 · 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. 1.68 × 66 =
2. 2.502 × 508 =
3. 3.194 × 198 =
4. 4.44 × 41 =
5. 5.596 × 595 =
6. 6.32 × 31 =
7. 7.199 × 194 =
8. 8.396 × 394 =
9. 9.89 × 87 =
10. 10.599 × 597 =
11. 11.42 × 44 =
12. 12.598 × 596 =
13. 13.42 × 42 =
14. 14.408 × 403 =
15. 15.69 × 68 =
16. 16.71 × 71 =
17. 17.79 × 78 =
18. 18.601 × 608 =
19. 19.406 × 404 =
20. 20.297 × 298 =
21. 21.404 × 402 =
22. 22.197 × 197 =
23. 23.194 × 192 =
24. 24.599 × 594 =
25. 25.46 × 46 =
26. 26.401 × 409 =
27. 27.407 × 406 =
28. 28.307 × 305 =
29. 29.67 × 67 =
30. 30.41 × 44 =
31. 31.395 × 394 =
32. 32.69 × 66 =
33. 33.67 × 67 =
34. 34.406 × 409 =
35. 35.491 × 491 =
36. 36.308 × 304 =
37. 37.399 × 395 =
38. 38.192 × 193 =
39. 39.62 × 64 =
40. 40.63 × 61 =

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