Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 651 · 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. 1.24 × 21 =
2. 2.198 × 196 =
3. 3.38 × 36 =
4. 4.42 × 43 =
5. 5.409 × 406 =
6. 6.48 × 48 =
7. 7.306 × 307 =
8. 8.499 × 498 =
9. 9.405 × 409 =
10. 10.199 × 199 =
11. 11.493 × 496 =
12. 12.51 × 53 =
13. 13.409 × 403 =
14. 14.82 × 83 =
15. 15.78 × 79 =
16. 16.19 × 19 =
17. 17.89 × 86 =
18. 18.508 × 503 =
19. 19.59 × 59 =
20. 20.192 × 198 =
21. 21.296 × 298 =
22. 22.43 × 41 =
23. 23.507 × 505 =
24. 24.402 × 402 =
25. 25.82 × 81 =
26. 26.601 × 603 =
27. 27.401 × 406 =
28. 28.205 × 202 =
29. 29.605 × 601 =
30. 30.301 × 302 =
31. 31.77 × 77 =
32. 32.199 × 193 =
33. 33.407 × 401 =
34. 34.72 × 72 =
35. 35.66 × 66 =
36. 36.298 × 293 =
37. 37.502 × 503 =
38. 38.74 × 71 =
39. 39.603 × 602 =
40. 40.304 × 305 =

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