Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 997 · 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. 1.197 × 195 =
2. 2.84 × 83 =
3. 3.503 × 507 =
4. 4.39 × 37 =
5. 5.24 × 23 =
6. 6.88 × 89 =
7. 7.28 × 29 =
8. 8.46 × 49 =
9. 9.69 × 69 =
10. 10.409 × 409 =
11. 11.61 × 62 =
12. 12.79 × 76 =
13. 13.203 × 209 =
14. 14.393 × 393 =
15. 15.79 × 78 =
16. 16.32 × 33 =
17. 17.494 × 492 =
18. 18.509 × 504 =
19. 19.39 × 38 =
20. 20.94 × 93 =
21. 21.27 × 28 =
22. 22.83 × 82 =
23. 23.391 × 394 =
24. 24.509 × 501 =
25. 25.502 × 507 =
26. 26.507 × 503 =
27. 27.54 × 54 =
28. 28.64 × 63 =
29. 29.403 × 403 =
30. 30.54 × 52 =
31. 31.492 × 499 =
32. 32.34 × 33 =
33. 33.609 × 605 =
34. 34.22 × 24 =
35. 35.403 × 402 =
36. 36.498 × 493 =
37. 37.24 × 24 =
38. 38.296 × 295 =
39. 39.88 × 88 =
40. 40.402 × 409 =

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