Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 423 · 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. 1.82 × 82 =
2. 2.404 × 401 =
3. 3.498 × 495 =
4. 4.23 × 22 =
5. 5.89 × 87 =
6. 6.605 × 603 =
7. 7.57 × 57 =
8. 8.308 × 302 =
9. 9.37 × 36 =
10. 10.591 × 595 =
11. 11.93 × 92 =
12. 12.302 × 302 =
13. 13.71 × 71 =
14. 14.28 × 27 =
15. 15.29 × 27 =
16. 16.303 × 305 =
17. 17.33 × 31 =
18. 18.21 × 23 =
19. 19.47 × 46 =
20. 20.18 × 19 =
21. 21.92 × 92 =
22. 22.299 × 297 =
23. 23.302 × 309 =
24. 24.301 × 309 =
25. 25.42 × 44 =
26. 26.198 × 194 =
27. 27.403 × 408 =
28. 28.67 × 67 =
29. 29.56 × 56 =
30. 30.47 × 46 =
31. 31.202 × 207 =
32. 32.79 × 79 =
33. 33.498 × 493 =
34. 34.29 × 27 =
35. 35.502 × 506 =
36. 36.497 × 494 =
37. 37.41 × 41 =
38. 38.82 × 81 =
39. 39.43 × 44 =
40. 40.493 × 494 =

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