Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 429 · 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. 1.198 × 198 =
2. 2.201 × 204 =
3. 3.76 × 79 =
4. 4.393 × 392 =
5. 5.598 × 593 =
6. 6.22 × 23 =
7. 7.37 × 37 =
8. 8.49 × 49 =
9. 9.64 × 64 =
10. 10.19 × 19 =
11. 11.63 × 63 =
12. 12.308 × 307 =
13. 13.81 × 84 =
14. 14.68 × 66 =
15. 15.299 × 295 =
16. 16.49 × 49 =
17. 17.509 × 506 =
18. 18.203 × 204 =
19. 19.37 × 39 =
20. 20.495 × 492 =
21. 21.502 × 506 =
22. 22.24 × 23 =
23. 23.198 × 194 =
24. 24.49 × 48 =
25. 25.86 × 89 =
26. 26.399 × 396 =
27. 27.22 × 23 =
28. 28.396 × 398 =
29. 29.26 × 28 =
30. 30.308 × 301 =
31. 31.306 × 301 =
32. 32.22 × 21 =
33. 33.87 × 87 =
34. 34.84 × 81 =
35. 35.78 × 76 =
36. 36.61 × 63 =
37. 37.59 × 57 =
38. 38.57 × 59 =
39. 39.69 × 66 =
40. 40.407 × 406 =

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