Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 648 · 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. 1.393 × 398 =
2. 2.22 × 21 =
3. 3.294 × 291 =
4. 4.592 × 597 =
5. 5.605 × 605 =
6. 6.201 × 204 =
7. 7.79 × 78 =
8. 8.404 × 402 =
9. 9.404 × 403 =
10. 10.403 × 405 =
11. 11.26 × 27 =
12. 12.497 × 499 =
13. 13.602 × 605 =
14. 14.506 × 508 =
15. 15.496 × 499 =
16. 16.93 × 91 =
17. 17.192 × 197 =
18. 18.22 × 21 =
19. 19.398 × 399 =
20. 20.23 × 24 =
21. 21.79 × 76 =
22. 22.18 × 16 =
23. 23.44 × 44 =
24. 24.49 × 46 =
25. 25.19 × 19 =
26. 26.49 × 46 =
27. 27.409 × 405 =
28. 28.601 × 601 =
29. 29.86 × 86 =
30. 30.492 × 498 =
31. 31.93 × 94 =
32. 32.27 × 27 =
33. 33.209 × 201 =
34. 34.54 × 54 =
35. 35.74 × 71 =
36. 36.602 × 607 =
37. 37.82 × 82 =
38. 38.86 × 89 =
39. 39.499 × 498 =
40. 40.76 × 76 =

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