Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 844 · 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. 1.54 × 52 =
2. 2.408 × 407 =
3. 3.29 × 29 =
4. 4.205 × 209 =
5. 5.33 × 32 =
6. 6.191 × 191 =
7. 7.504 × 502 =
8. 8.19 × 16 =
9. 9.591 × 599 =
10. 10.601 × 602 =
11. 11.87 × 87 =
12. 12.58 × 57 =
13. 13.291 × 299 =
14. 14.82 × 81 =
15. 15.34 × 31 =
16. 16.76 × 77 =
17. 17.391 × 396 =
18. 18.292 × 295 =
19. 19.593 × 592 =
20. 20.74 × 71 =
21. 21.408 × 406 =
22. 22.596 × 593 =
23. 23.26 × 28 =
24. 24.502 × 504 =
25. 25.505 × 502 =
26. 26.62 × 64 =
27. 27.203 × 201 =
28. 28.404 × 403 =
29. 29.49 × 48 =
30. 30.93 × 93 =
31. 31.79 × 78 =
32. 32.52 × 52 =
33. 33.591 × 596 =
34. 34.392 × 395 =
35. 35.62 × 64 =
36. 36.494 × 497 =
37. 37.394 × 396 =
38. 38.307 × 304 =
39. 39.79 × 78 =
40. 40.49 × 49 =

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