Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 424 · 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 × 81 =
2. 2.42 × 44 =
3. 3.402 × 407 =
4. 4.495 × 493 =
5. 5.391 × 391 =
6. 6.591 × 596 =
7. 7.394 × 398 =
8. 8.28 × 26 =
9. 9.16 × 16 =
10. 10.298 × 295 =
11. 11.44 × 44 =
12. 12.27 × 28 =
13. 13.61 × 61 =
14. 14.69 × 68 =
15. 15.404 × 408 =
16. 16.402 × 409 =
17. 17.72 × 74 =
18. 18.88 × 89 =
19. 19.401 × 402 =
20. 20.49 × 49 =
21. 21.49 × 46 =
22. 22.18 × 16 =
23. 23.59 × 59 =
24. 24.592 × 597 =
25. 25.87 × 88 =
26. 26.79 × 78 =
27. 27.27 × 29 =
28. 28.52 × 51 =
29. 29.493 × 499 =
30. 30.39 × 39 =
31. 31.77 × 78 =
32. 32.58 × 58 =
33. 33.405 × 402 =
34. 34.503 × 501 =
35. 35.52 × 51 =
36. 36.193 × 195 =
37. 37.78 × 79 =
38. 38.64 × 62 =
39. 39.52 × 53 =
40. 40.77 × 76 =

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