Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 68 · 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. 1.205 × 205 =
2. 2.604 × 602 =
3. 3.594 × 592 =
4. 4.398 × 398 =
5. 5.27 × 27 =
6. 6.202 × 208 =
7. 7.205 × 208 =
8. 8.505 × 507 =
9. 9.398 × 393 =
10. 10.78 × 76 =
11. 11.58 × 59 =
12. 12.21 × 23 =
13. 13.26 × 27 =
14. 14.304 × 308 =
15. 15.79 × 78 =
16. 16.307 × 309 =
17. 17.47 × 48 =
18. 18.22 × 21 =
19. 19.26 × 27 =
20. 20.51 × 53 =
21. 21.24 × 21 =
22. 22.87 × 89 =
23. 23.18 × 19 =
24. 24.398 × 394 =
25. 25.51 × 52 =
26. 26.53 × 53 =
27. 27.26 × 29 =
28. 28.62 × 62 =
29. 29.294 × 295 =
30. 30.73 × 71 =
31. 31.22 × 22 =
32. 32.68 × 69 =
33. 33.91 × 94 =
34. 34.76 × 77 =
35. 35.395 × 391 =
36. 36.293 × 298 =
37. 37.82 × 83 =
38. 38.41 × 41 =
39. 39.295 × 297 =
40. 40.491 × 499 =

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