Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 841 · 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. 1.603 × 608 =
2. 2.93 × 93 =
3. 3.396 × 398 =
4. 4.496 × 499 =
5. 5.591 × 591 =
6. 6.495 × 497 =
7. 7.23 × 23 =
8. 8.398 × 397 =
9. 9.17 × 18 =
10. 10.604 × 607 =
11. 11.299 × 291 =
12. 12.192 × 196 =
13. 13.59 × 56 =
14. 14.301 × 301 =
15. 15.22 × 21 =
16. 16.592 × 593 =
17. 17.493 × 495 =
18. 18.89 × 88 =
19. 19.48 × 49 =
20. 20.16 × 18 =
21. 21.305 × 307 =
22. 22.64 × 63 =
23. 23.24 × 23 =
24. 24.16 × 16 =
25. 25.203 × 204 =
26. 26.406 × 406 =
27. 27.83 × 82 =
28. 28.595 × 592 =
29. 29.51 × 51 =
30. 30.391 × 398 =
31. 31.33 × 31 =
32. 32.291 × 299 =
33. 33.74 × 71 =
34. 34.33 × 34 =
35. 35.208 × 203 =
36. 36.79 × 77 =
37. 37.309 × 308 =
38. 38.81 × 83 =
39. 39.398 × 398 =
40. 40.93 × 93 =

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