Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 931 · 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. 1.28 × 29 =
2. 2.18 × 18 =
3. 3.51 × 51 =
4. 4.605 × 606 =
5. 5.508 × 506 =
6. 6.209 × 202 =
7. 7.501 × 508 =
8. 8.18 × 19 =
9. 9.74 × 73 =
10. 10.593 × 599 =
11. 11.504 × 504 =
12. 12.88 × 88 =
13. 13.201 × 202 =
14. 14.66 × 69 =
15. 15.302 × 307 =
16. 16.39 × 36 =
17. 17.31 × 34 =
18. 18.64 × 62 =
19. 19.302 × 303 =
20. 20.198 × 197 =
21. 21.33 × 33 =
22. 22.499 × 499 =
23. 23.304 × 307 =
24. 24.392 × 396 =
25. 25.404 × 406 =
26. 26.27 × 29 =
27. 27.595 × 594 =
28. 28.24 × 24 =
29. 29.89 × 88 =
30. 30.406 × 403 =
31. 31.409 × 401 =
32. 32.71 × 72 =
33. 33.507 × 503 =
34. 34.37 × 39 =
35. 35.41 × 41 =
36. 36.409 × 402 =
37. 37.593 × 592 =
38. 38.52 × 52 =
39. 39.204 × 208 =
40. 40.19 × 19 =

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