Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 903 · 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. 1.61 × 64 =
2. 2.36 × 38 =
3. 3.56 × 58 =
4. 4.193 × 199 =
5. 5.58 × 56 =
6. 6.201 × 208 =
7. 7.301 × 305 =
8. 8.495 × 491 =
9. 9.18 × 16 =
10. 10.509 × 502 =
11. 11.194 × 194 =
12. 12.53 × 51 =
13. 13.56 × 59 =
14. 14.393 × 397 =
15. 15.86 × 89 =
16. 16.81 × 83 =
17. 17.296 × 294 =
18. 18.72 × 72 =
19. 19.83 × 82 =
20. 20.302 × 309 =
21. 21.82 × 81 =
22. 22.308 × 308 =
23. 23.94 × 91 =
24. 24.409 × 404 =
25. 25.37 × 38 =
26. 26.408 × 407 =
27. 27.503 × 509 =
28. 28.38 × 38 =
29. 29.291 × 293 =
30. 30.77 × 78 =
31. 31.299 × 292 =
32. 32.397 × 396 =
33. 33.92 × 91 =
34. 34.83 × 81 =
35. 35.497 × 497 =
36. 36.62 × 64 =
37. 37.72 × 74 =
38. 38.197 × 196 =
39. 39.307 × 305 =
40. 40.493 × 491 =

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