Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 366 · 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. 1.298 × 291 =
2. 2.202 × 205 =
3. 3.499 × 498 =
4. 4.77 × 79 =
5. 5.36 × 39 =
6. 6.491 × 496 =
7. 7.601 × 601 =
8. 8.67 × 67 =
9. 9.201 × 204 =
10. 10.16 × 18 =
11. 11.197 × 193 =
12. 12.195 × 199 =
13. 13.87 × 89 =
14. 14.29 × 29 =
15. 15.27 × 29 =
16. 16.395 × 391 =
17. 17.66 × 67 =
18. 18.22 × 22 =
19. 19.31 × 31 =
20. 20.94 × 92 =
21. 21.494 × 497 =
22. 22.47 × 47 =
23. 23.507 × 508 =
24. 24.602 × 608 =
25. 25.291 × 297 =
26. 26.69 × 67 =
27. 27.46 × 47 =
28. 28.22 × 23 =
29. 29.84 × 81 =
30. 30.76 × 78 =
31. 31.193 × 195 =
32. 32.71 × 71 =
33. 33.293 × 299 =
34. 34.193 × 199 =
35. 35.68 × 68 =
36. 36.403 × 407 =
37. 37.597 × 591 =
38. 38.507 × 504 =
39. 39.406 × 408 =
40. 40.81 × 81 =

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