Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 175 · 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. 1.307 × 306 =
2. 2.407 × 406 =
3. 3.505 × 503 =
4. 4.29 × 29 =
5. 5.39 × 36 =
6. 6.67 × 68 =
7. 7.603 × 609 =
8. 8.38 × 36 =
9. 9.27 × 29 =
10. 10.79 × 76 =
11. 11.27 × 26 =
12. 12.205 × 209 =
13. 13.398 × 395 =
14. 14.83 × 83 =
15. 15.24 × 22 =
16. 16.83 × 84 =
17. 17.94 × 91 =
18. 18.19 × 17 =
19. 19.32 × 33 =
20. 20.51 × 52 =
21. 21.401 × 401 =
22. 22.506 × 504 =
23. 23.494 × 493 =
24. 24.597 × 599 =
25. 25.83 × 84 =
26. 26.492 × 493 =
27. 27.38 × 38 =
28. 28.401 × 408 =
29. 29.39 × 37 =
30. 30.21 × 23 =
31. 31.24 × 21 =
32. 32.302 × 309 =
33. 33.304 × 303 =
34. 34.54 × 52 =
35. 35.299 × 292 =
36. 36.601 × 607 =
37. 37.26 × 27 =
38. 38.409 × 402 =
39. 39.608 × 609 =
40. 40.509 × 506 =

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