Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 312 · 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. 1.205 × 205 =
2. 2.38 × 36 =
3. 3.21 × 24 =
4. 4.27 × 29 =
5. 5.595 × 591 =
6. 6.299 × 295 =
7. 7.208 × 202 =
8. 8.593 × 596 =
9. 9.44 × 41 =
10. 10.31 × 34 =
11. 11.405 × 408 =
12. 12.407 × 405 =
13. 13.293 × 298 =
14. 14.49 × 49 =
15. 15.66 × 66 =
16. 16.61 × 63 =
17. 17.209 × 201 =
18. 18.79 × 79 =
19. 19.38 × 36 =
20. 20.391 × 391 =
21. 21.22 × 24 =
22. 22.406 × 407 =
23. 23.66 × 69 =
24. 24.494 × 492 =
25. 25.304 × 309 =
26. 26.71 × 72 =
27. 27.29 × 28 =
28. 28.81 × 81 =
29. 29.32 × 31 =
30. 30.292 × 291 =
31. 31.62 × 64 =
32. 32.597 × 597 =
33. 33.29 × 28 =
34. 34.44 × 44 =
35. 35.81 × 83 =
36. 36.38 × 39 =
37. 37.199 × 194 =
38. 38.18 × 19 =
39. 39.73 × 71 =
40. 40.496 × 499 =

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