Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 505 · 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. 1.23 × 24 =
2. 2.62 × 63 =
3. 3.82 × 82 =
4. 4.405 × 409 =
5. 5.68 × 68 =
6. 6.493 × 498 =
7. 7.597 × 592 =
8. 8.593 × 598 =
9. 9.507 × 509 =
10. 10.293 × 299 =
11. 11.86 × 89 =
12. 12.509 × 504 =
13. 13.82 × 82 =
14. 14.207 × 201 =
15. 15.209 × 205 =
16. 16.91 × 94 =
17. 17.609 × 601 =
18. 18.86 × 87 =
19. 19.67 × 67 =
20. 20.24 × 23 =
21. 21.393 × 399 =
22. 22.191 × 197 =
23. 23.406 × 401 =
24. 24.43 × 42 =
25. 25.195 × 196 =
26. 26.42 × 41 =
27. 27.63 × 61 =
28. 28.78 × 79 =
29. 29.59 × 59 =
30. 30.19 × 17 =
31. 31.506 × 506 =
32. 32.403 × 402 =
33. 33.29 × 27 =
34. 34.69 × 67 =
35. 35.202 × 204 =
36. 36.73 × 73 =
37. 37.196 × 199 =
38. 38.493 × 497 =
39. 39.494 × 491 =
40. 40.501 × 508 =

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