Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 811 · 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. 1.68 × 66 =
2. 2.83 × 82 =
3. 3.393 × 396 =
4. 4.298 × 298 =
5. 5.206 × 206 =
6. 6.497 × 494 =
7. 7.38 × 37 =
8. 8.499 × 491 =
9. 9.308 × 305 =
10. 10.16 × 18 =
11. 11.87 × 88 =
12. 12.203 × 201 =
13. 13.18 × 18 =
14. 14.46 × 46 =
15. 15.403 × 408 =
16. 16.76 × 78 =
17. 17.37 × 36 =
18. 18.83 × 84 =
19. 19.202 × 203 =
20. 20.503 × 503 =
21. 21.26 × 26 =
22. 22.204 × 204 =
23. 23.599 × 592 =
24. 24.24 × 21 =
25. 25.303 × 301 =
26. 26.16 × 16 =
27. 27.93 × 94 =
28. 28.21 × 22 =
29. 29.17 × 17 =
30. 30.303 × 308 =
31. 31.24 × 21 =
32. 32.91 × 91 =
33. 33.504 × 504 =
34. 34.83 × 81 =
35. 35.297 × 299 =
36. 36.89 × 87 =
37. 37.44 × 43 =
38. 38.29 × 27 =
39. 39.61 × 64 =
40. 40.92 × 91 =

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