Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 462 · 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. 1.509 × 509 =
2. 2.16 × 19 =
3. 3.301 × 304 =
4. 4.41 × 42 =
5. 5.22 × 24 =
6. 6.24 × 21 =
7. 7.83 × 81 =
8. 8.92 × 91 =
9. 9.42 × 43 =
10. 10.199 × 199 =
11. 11.37 × 39 =
12. 12.194 × 198 =
13. 13.494 × 491 =
14. 14.605 × 601 =
15. 15.91 × 91 =
16. 16.73 × 73 =
17. 17.86 × 89 =
18. 18.493 × 495 =
19. 19.408 × 408 =
20. 20.63 × 63 =
21. 21.596 × 599 =
22. 22.22 × 24 =
23. 23.83 × 84 =
24. 24.505 × 507 =
25. 25.56 × 58 =
26. 26.64 × 61 =
27. 27.48 × 49 =
28. 28.595 × 597 =
29. 29.401 × 403 =
30. 30.58 × 56 =
31. 31.395 × 395 =
32. 32.596 × 594 =
33. 33.44 × 44 =
34. 34.208 × 201 =
35. 35.593 × 597 =
36. 36.21 × 21 =
37. 37.209 × 209 =
38. 38.592 × 592 =
39. 39.402 × 407 =
40. 40.392 × 392 =

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