Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 115 · 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. 1.506 × 509 =
2. 2.58 × 56 =
3. 3.42 × 41 =
4. 4.498 × 491 =
5. 5.591 × 595 =
6. 6.195 × 194 =
7. 7.497 × 497 =
8. 8.307 × 302 =
9. 9.77 × 78 =
10. 10.17 × 17 =
11. 11.306 × 301 =
12. 12.407 × 406 =
13. 13.391 × 397 =
14. 14.19 × 16 =
15. 15.83 × 82 =
16. 16.91 × 91 =
17. 17.53 × 53 =
18. 18.204 × 204 =
19. 19.19 × 16 =
20. 20.49 × 48 =
21. 21.82 × 82 =
22. 22.19 × 18 =
23. 23.79 × 78 =
24. 24.395 × 394 =
25. 25.403 × 406 =
26. 26.294 × 295 =
27. 27.43 × 44 =
28. 28.191 × 192 =
29. 29.306 × 307 =
30. 30.62 × 61 =
31. 31.43 × 43 =
32. 32.44 × 41 =
33. 33.44 × 41 =
34. 34.51 × 51 =
35. 35.59 × 57 =
36. 36.294 × 292 =
37. 37.92 × 91 =
38. 38.61 × 63 =
39. 39.49 × 47 =
40. 40.198 × 194 =

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