Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 525 · 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. 1.401 × 407 =
2. 2.196 × 198 =
3. 3.39 × 36 =
4. 4.78 × 78 =
5. 5.301 × 304 =
6. 6.196 × 195 =
7. 7.81 × 84 =
8. 8.47 × 47 =
9. 9.395 × 396 =
10. 10.29 × 28 =
11. 11.79 × 78 =
12. 12.73 × 71 =
13. 13.26 × 26 =
14. 14.17 × 17 =
15. 15.507 × 501 =
16. 16.54 × 51 =
17. 17.397 × 397 =
18. 18.392 × 392 =
19. 19.292 × 295 =
20. 20.81 × 84 =
21. 21.203 × 207 =
22. 22.44 × 42 =
23. 23.47 × 46 =
24. 24.74 × 74 =
25. 25.293 × 295 =
26. 26.62 × 62 =
27. 27.59 × 56 =
28. 28.302 × 301 =
29. 29.508 × 508 =
30. 30.498 × 499 =
31. 31.41 × 41 =
32. 32.48 × 48 =
33. 33.303 × 301 =
34. 34.69 × 67 =
35. 35.602 × 602 =
36. 36.207 × 201 =
37. 37.46 × 49 =
38. 38.41 × 41 =
39. 39.402 × 403 =
40. 40.299 × 296 =

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