Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 430 · 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. 1.199 × 199 =
2. 2.42 × 41 =
3. 3.198 × 195 =
4. 4.52 × 54 =
5. 5.81 × 82 =
6. 6.406 × 403 =
7. 7.204 × 208 =
8. 8.301 × 309 =
9. 9.33 × 31 =
10. 10.37 × 38 =
11. 11.66 × 66 =
12. 12.305 × 306 =
13. 13.18 × 16 =
14. 14.597 × 597 =
15. 15.405 × 404 =
16. 16.73 × 74 =
17. 17.21 × 23 =
18. 18.502 × 502 =
19. 19.28 × 29 =
20. 20.499 × 499 =
21. 21.76 × 77 =
22. 22.209 × 208 =
23. 23.603 × 601 =
24. 24.497 × 499 =
25. 25.402 × 402 =
26. 26.599 × 594 =
27. 27.498 × 495 =
28. 28.19 × 19 =
29. 29.67 × 67 =
30. 30.304 × 306 =
31. 31.501 × 501 =
32. 32.31 × 34 =
33. 33.66 × 69 =
34. 34.73 × 71 =
35. 35.84 × 83 =
36. 36.94 × 91 =
37. 37.602 × 607 =
38. 38.46 × 49 =
39. 39.34 × 31 =
40. 40.81 × 84 =

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