Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 223 · 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. 1.64 × 64 =
2. 2.63 × 61 =
3. 3.51 × 53 =
4. 4.294 × 292 =
5. 5.36 × 39 =
6. 6.82 × 81 =
7. 7.603 × 605 =
8. 8.66 × 67 =
9. 9.491 × 498 =
10. 10.495 × 497 =
11. 11.92 × 91 =
12. 12.52 × 51 =
13. 13.61 × 64 =
14. 14.303 × 303 =
15. 15.297 × 291 =
16. 16.88 × 86 =
17. 17.83 × 81 =
18. 18.401 × 407 =
19. 19.71 × 71 =
20. 20.391 × 399 =
21. 21.76 × 77 =
22. 22.306 × 308 =
23. 23.31 × 32 =
24. 24.31 × 32 =
25. 25.402 × 405 =
26. 26.504 × 507 =
27. 27.298 × 294 =
28. 28.493 × 492 =
29. 29.191 × 199 =
30. 30.24 × 22 =
31. 31.37 × 37 =
32. 32.93 × 92 =
33. 33.74 × 71 =
34. 34.29 × 29 =
35. 35.41 × 42 =
36. 36.297 × 298 =
37. 37.91 × 92 =
38. 38.204 × 204 =
39. 39.393 × 393 =
40. 40.94 × 91 =

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