Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 839 · 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. 1.61 × 62 =
2. 2.56 × 58 =
3. 3.307 × 307 =
4. 4.493 × 491 =
5. 5.392 × 394 =
6. 6.592 × 592 =
7. 7.52 × 53 =
8. 8.19 × 16 =
9. 9.57 × 58 =
10. 10.192 × 196 =
11. 11.84 × 81 =
12. 12.51 × 52 =
13. 13.71 × 74 =
14. 14.27 × 27 =
15. 15.27 × 29 =
16. 16.502 × 501 =
17. 17.72 × 74 =
18. 18.293 × 299 =
19. 19.81 × 84 =
20. 20.51 × 52 =
21. 21.499 × 492 =
22. 22.601 × 606 =
23. 23.26 × 28 =
24. 24.596 × 591 =
25. 25.497 × 493 =
26. 26.593 × 596 =
27. 27.53 × 54 =
28. 28.41 × 42 =
29. 29.61 × 64 =
30. 30.295 × 293 =
31. 31.73 × 73 =
32. 32.299 × 294 =
33. 33.204 × 205 =
34. 34.48 × 49 =
35. 35.404 × 403 =
36. 36.406 × 408 =
37. 37.53 × 52 =
38. 38.73 × 74 =
39. 39.26 × 27 =
40. 40.601 × 601 =

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