Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 817 · 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. 1.209 × 201 =
2. 2.73 × 71 =
3. 3.41 × 41 =
4. 4.409 × 407 =
5. 5.299 × 292 =
6. 6.81 × 83 =
7. 7.19 × 16 =
8. 8.191 × 191 =
9. 9.401 × 401 =
10. 10.493 × 496 =
11. 11.499 × 498 =
12. 12.598 × 596 =
13. 13.59 × 56 =
14. 14.29 × 28 =
15. 15.81 × 83 =
16. 16.69 × 69 =
17. 17.204 × 207 =
18. 18.66 × 69 =
19. 19.36 × 36 =
20. 20.396 × 395 =
21. 21.77 × 77 =
22. 22.405 × 404 =
23. 23.66 × 67 =
24. 24.19 × 18 =
25. 25.82 × 84 =
26. 26.78 × 76 =
27. 27.291 × 294 =
28. 28.86 × 86 =
29. 29.89 × 86 =
30. 30.26 × 26 =
31. 31.598 × 599 =
32. 32.41 × 43 =
33. 33.72 × 73 =
34. 34.38 × 38 =
35. 35.28 × 26 =
36. 36.193 × 196 =
37. 37.29 × 26 =
38. 38.27 × 29 =
39. 39.406 × 407 =
40. 40.306 × 303 =

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