Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 503 · 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. 1.83 × 82 =
2. 2.78 × 76 =
3. 3.408 × 407 =
4. 4.591 × 596 =
5. 5.86 × 87 =
6. 6.392 × 393 =
7. 7.91 × 93 =
8. 8.37 × 37 =
9. 9.33 × 32 =
10. 10.18 × 16 =
11. 11.94 × 92 =
12. 12.79 × 78 =
13. 13.36 × 38 =
14. 14.297 × 297 =
15. 15.299 × 295 =
16. 16.308 × 304 =
17. 17.391 × 398 =
18. 18.58 × 58 =
19. 19.501 × 508 =
20. 20.39 × 36 =
21. 21.201 × 209 =
22. 22.202 × 204 =
23. 23.393 × 393 =
24. 24.192 × 191 =
25. 25.407 × 406 =
26. 26.295 × 294 =
27. 27.49 × 46 =
28. 28.28 × 29 =
29. 29.492 × 492 =
30. 30.406 × 408 =
31. 31.34 × 32 =
32. 32.39 × 38 =
33. 33.496 × 499 =
34. 34.67 × 66 =
35. 35.592 × 599 =
36. 36.84 × 81 =
37. 37.204 × 207 =
38. 38.61 × 63 =
39. 39.19 × 17 =
40. 40.73 × 72 =

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