Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 428 · 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. 1.503 × 504 =
2. 2.37 × 36 =
3. 3.57 × 59 =
4. 4.34 × 34 =
5. 5.87 × 88 =
6. 6.33 × 31 =
7. 7.73 × 72 =
8. 8.298 × 298 =
9. 9.46 × 47 =
10. 10.401 × 409 =
11. 11.26 × 27 =
12. 12.79 × 78 =
13. 13.605 × 602 =
14. 14.18 × 17 =
15. 15.52 × 52 =
16. 16.496 × 499 =
17. 17.205 × 205 =
18. 18.508 × 501 =
19. 19.28 × 29 =
20. 20.58 × 59 =
21. 21.37 × 39 =
22. 22.491 × 499 =
23. 23.491 × 496 =
24. 24.399 × 397 =
25. 25.608 × 601 =
26. 26.497 × 491 =
27. 27.82 × 84 =
28. 28.88 × 87 =
29. 29.77 × 76 =
30. 30.39 × 39 =
31. 31.83 × 82 =
32. 32.199 × 199 =
33. 33.31 × 34 =
34. 34.291 × 291 =
35. 35.78 × 79 =
36. 36.39 × 37 =
37. 37.401 × 404 =
38. 38.204 × 206 =
39. 39.69 × 66 =
40. 40.71 × 71 =

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