Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 9 · 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. 1.202 × 206 =
2. 2.21 × 24 =
3. 3.403 × 408 =
4. 4.394 × 394 =
5. 5.77 × 79 =
6. 6.61 × 61 =
7. 7.58 × 57 =
8. 8.46 × 46 =
9. 9.609 × 605 =
10. 10.37 × 39 =
11. 11.504 × 505 =
12. 12.602 × 601 =
13. 13.33 × 31 =
14. 14.403 × 406 =
15. 15.502 × 508 =
16. 16.86 × 86 =
17. 17.309 × 309 =
18. 18.91 × 94 =
19. 19.61 × 62 =
20. 20.507 × 504 =
21. 21.79 × 78 =
22. 22.198 × 198 =
23. 23.82 × 84 =
24. 24.292 × 299 =
25. 25.89 × 87 =
26. 26.94 × 93 =
27. 27.61 × 64 =
28. 28.491 × 496 =
29. 29.496 × 498 =
30. 30.76 × 79 =
31. 31.503 × 508 =
32. 32.83 × 81 =
33. 33.38 × 39 =
34. 34.26 × 29 =
35. 35.508 × 505 =
36. 36.298 × 294 =
37. 37.57 × 59 =
38. 38.76 × 76 =
39. 39.72 × 74 =
40. 40.87 × 87 =

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