Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 361 · 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. 1.404 × 409 =
2. 2.401 × 407 =
3. 3.201 × 206 =
4. 4.83 × 84 =
5. 5.78 × 78 =
6. 6.393 × 391 =
7. 7.87 × 89 =
8. 8.31 × 31 =
9. 9.501 × 505 =
10. 10.86 × 89 =
11. 11.408 × 402 =
12. 12.299 × 294 =
13. 13.64 × 64 =
14. 14.503 × 505 =
15. 15.21 × 24 =
16. 16.598 × 598 =
17. 17.79 × 76 =
18. 18.396 × 393 =
19. 19.304 × 309 =
20. 20.19 × 18 =
21. 21.91 × 92 =
22. 22.49 × 49 =
23. 23.609 × 607 =
24. 24.87 × 89 =
25. 25.593 × 593 =
26. 26.499 × 498 =
27. 27.28 × 28 =
28. 28.38 × 38 =
29. 29.24 × 24 =
30. 30.53 × 54 =
31. 31.93 × 91 =
32. 32.397 × 397 =
33. 33.23 × 23 =
34. 34.24 × 22 =
35. 35.52 × 51 =
36. 36.491 × 495 =
37. 37.54 × 52 =
38. 38.84 × 83 =
39. 39.58 × 58 =
40. 40.294 × 291 =

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