Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 3 · 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. 1.208 × 206 =
2. 2.498 × 497 =
3. 3.22 × 24 =
4. 4.47 × 48 =
5. 5.49 × 47 =
6. 6.196 × 199 =
7. 7.409 × 407 =
8. 8.305 × 306 =
9. 9.78 × 77 =
10. 10.21 × 23 =
11. 11.81 × 84 =
12. 12.205 × 209 =
13. 13.54 × 53 =
14. 14.592 × 596 =
15. 15.505 × 508 =
16. 16.605 × 606 =
17. 17.609 × 604 =
18. 18.208 × 208 =
19. 19.204 × 203 =
20. 20.397 × 397 =
21. 21.67 × 66 =
22. 22.603 × 601 =
23. 23.493 × 495 =
24. 24.32 × 31 =
25. 25.79 × 79 =
26. 26.301 × 304 =
27. 27.28 × 29 =
28. 28.69 × 69 =
29. 29.408 × 405 =
30. 30.201 × 201 =
31. 31.392 × 397 =
32. 32.505 × 502 =
33. 33.81 × 81 =
34. 34.64 × 61 =
35. 35.394 × 397 =
36. 36.508 × 505 =
37. 37.193 × 198 =
38. 38.42 × 43 =
39. 39.67 × 69 =
40. 40.198 × 195 =

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