Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 943 · 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 × 603 =
2. 2.504 × 508 =
3. 3.33 × 31 =
4. 4.59 × 57 =
5. 5.393 × 394 =
6. 6.502 × 509 =
7. 7.396 × 399 =
8. 8.76 × 78 =
9. 9.506 × 504 =
10. 10.22 × 21 =
11. 11.399 × 392 =
12. 12.499 × 493 =
13. 13.46 × 46 =
14. 14.491 × 493 =
15. 15.403 × 404 =
16. 16.78 × 78 =
17. 17.404 × 404 =
18. 18.19 × 18 =
19. 19.79 × 76 =
20. 20.298 × 295 =
21. 21.494 × 497 =
22. 22.17 × 16 =
23. 23.398 × 393 =
24. 24.602 × 601 =
25. 25.194 × 197 =
26. 26.82 × 84 =
27. 27.198 × 191 =
28. 28.204 × 201 =
29. 29.41 × 43 =
30. 30.404 × 402 =
31. 31.397 × 393 =
32. 32.497 × 493 =
33. 33.22 × 22 =
34. 34.601 × 606 =
35. 35.49 × 46 =
36. 36.22 × 22 =
37. 37.31 × 33 =
38. 38.21 × 22 =
39. 39.66 × 69 =
40. 40.43 × 42 =

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