Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 924 · 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. 1.305 × 308 =
2. 2.61 × 61 =
3. 3.66 × 66 =
4. 4.68 × 67 =
5. 5.66 × 67 =
6. 6.19 × 19 =
7. 7.74 × 74 =
8. 8.294 × 294 =
9. 9.52 × 51 =
10. 10.26 × 28 =
11. 11.293 × 298 =
12. 12.406 × 409 =
13. 13.26 × 26 =
14. 14.196 × 197 =
15. 15.407 × 402 =
16. 16.507 × 506 =
17. 17.42 × 44 =
18. 18.304 × 309 =
19. 19.77 × 79 =
20. 20.49 × 49 =
21. 21.202 × 202 =
22. 22.64 × 61 =
23. 23.82 × 84 =
24. 24.81 × 81 =
25. 25.201 × 207 =
26. 26.22 × 22 =
27. 27.93 × 94 =
28. 28.27 × 29 =
29. 29.47 × 46 =
30. 30.27 × 27 =
31. 31.57 × 58 =
32. 32.492 × 499 =
33. 33.81 × 84 =
34. 34.81 × 82 =
35. 35.64 × 63 =
36. 36.492 × 498 =
37. 37.498 × 497 =
38. 38.84 × 83 =
39. 39.26 × 28 =
40. 40.34 × 31 =

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