Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 494 · 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. 1.42 × 43 =
2. 2.94 × 92 =
3. 3.16 × 16 =
4. 4.51 × 51 =
5. 5.22 × 21 =
6. 6.305 × 301 =
7. 7.74 × 74 =
8. 8.63 × 64 =
9. 9.501 × 501 =
10. 10.497 × 491 =
11. 11.607 × 602 =
12. 12.508 × 501 =
13. 13.595 × 596 =
14. 14.53 × 51 =
15. 15.393 × 397 =
16. 16.36 × 37 =
17. 17.84 × 82 =
18. 18.202 × 202 =
19. 19.73 × 74 =
20. 20.93 × 91 =
21. 21.93 × 92 =
22. 22.87 × 89 =
23. 23.42 × 42 =
24. 24.73 × 74 =
25. 25.493 × 492 =
26. 26.304 × 301 =
27. 27.69 × 68 =
28. 28.398 × 396 =
29. 29.507 × 504 =
30. 30.83 × 83 =
31. 31.56 × 59 =
32. 32.18 × 16 =
33. 33.67 × 69 =
34. 34.395 × 395 =
35. 35.18 × 19 =
36. 36.502 × 505 =
37. 37.291 × 293 =
38. 38.396 × 391 =
39. 39.497 × 498 =
40. 40.592 × 596 =

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