Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 419 · 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. 1.16 × 19 =
2. 2.17 × 16 =
3. 3.408 × 406 =
4. 4.209 × 209 =
5. 5.592 × 596 =
6. 6.309 × 305 =
7. 7.503 × 504 =
8. 8.396 × 394 =
9. 9.407 × 405 =
10. 10.502 × 502 =
11. 11.292 × 295 =
12. 12.391 × 397 =
13. 13.403 × 403 =
14. 14.505 × 504 =
15. 15.49 × 46 =
16. 16.78 × 79 =
17. 17.204 × 201 =
18. 18.28 × 29 =
19. 19.192 × 192 =
20. 20.74 × 72 =
21. 21.49 × 49 =
22. 22.206 × 207 =
23. 23.73 × 74 =
24. 24.77 × 76 =
25. 25.203 × 204 =
26. 26.94 × 94 =
27. 27.17 × 17 =
28. 28.63 × 61 =
29. 29.93 × 91 =
30. 30.37 × 37 =
31. 31.191 × 195 =
32. 32.79 × 79 =
33. 33.203 × 207 =
34. 34.38 × 38 =
35. 35.392 × 392 =
36. 36.39 × 37 =
37. 37.29 × 27 =
38. 38.88 × 89 =
39. 39.49 × 49 =
40. 40.301 × 307 =

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