Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 764 · 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. 1.54 × 54 =
2. 2.17 × 19 =
3. 3.405 × 402 =
4. 4.201 × 202 =
5. 5.18 × 19 =
6. 6.398 × 391 =
7. 7.34 × 34 =
8. 8.54 × 52 =
9. 9.24 × 24 =
10. 10.37 × 38 =
11. 11.94 × 94 =
12. 12.44 × 43 =
13. 13.19 × 18 =
14. 14.599 × 599 =
15. 15.501 × 503 =
16. 16.22 × 24 =
17. 17.203 × 201 =
18. 18.62 × 64 =
19. 19.38 × 36 =
20. 20.86 × 89 =
21. 21.47 × 46 =
22. 22.84 × 82 =
23. 23.594 × 597 =
24. 24.24 × 21 =
25. 25.93 × 91 =
26. 26.16 × 19 =
27. 27.19 × 19 =
28. 28.37 × 36 =
29. 29.81 × 84 =
30. 30.208 × 204 =
31. 31.302 × 308 =
32. 32.44 × 41 =
33. 33.18 × 19 =
34. 34.509 × 508 =
35. 35.18 × 16 =
36. 36.81 × 84 =
37. 37.505 × 509 =
38. 38.38 × 37 =
39. 39.28 × 29 =
40. 40.47 × 49 =

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