Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 432 · 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 × 395 =
2. 2.21 × 21 =
3. 3.82 × 81 =
4. 4.193 × 197 =
5. 5.83 × 81 =
6. 6.29 × 28 =
7. 7.61 × 61 =
8. 8.41 × 44 =
9. 9.53 × 53 =
10. 10.37 × 36 =
11. 11.307 × 305 =
12. 12.196 × 195 =
13. 13.33 × 31 =
14. 14.196 × 198 =
15. 15.408 × 402 =
16. 16.192 × 194 =
17. 17.198 × 193 =
18. 18.37 × 38 =
19. 19.31 × 31 =
20. 20.291 × 299 =
21. 21.41 × 44 =
22. 22.504 × 502 =
23. 23.293 × 297 =
24. 24.494 × 498 =
25. 25.26 × 28 =
26. 26.88 × 86 =
27. 27.393 × 391 =
28. 28.32 × 32 =
29. 29.26 × 28 =
30. 30.42 × 42 =
31. 31.493 × 498 =
32. 32.29 × 28 =
33. 33.53 × 54 =
34. 34.78 × 79 =
35. 35.595 × 597 =
36. 36.19 × 17 =
37. 37.398 × 396 =
38. 38.82 × 83 =
39. 39.93 × 94 =
40. 40.83 × 82 =

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