Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 719 · 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. 1.83 × 82 =
2. 2.391 × 394 =
3. 3.21 × 21 =
4. 4.81 × 81 =
5. 5.393 × 399 =
6. 6.29 × 27 =
7. 7.61 × 62 =
8. 8.607 × 601 =
9. 9.51 × 51 =
10. 10.64 × 62 =
11. 11.198 × 197 =
12. 12.79 × 76 =
13. 13.299 × 297 =
14. 14.39 × 37 =
15. 15.37 × 37 =
16. 16.24 × 24 =
17. 17.507 × 504 =
18. 18.609 × 603 =
19. 19.402 × 409 =
20. 20.305 × 309 =
21. 21.496 × 497 =
22. 22.67 × 69 =
23. 23.403 × 406 =
24. 24.62 × 63 =
25. 25.21 × 24 =
26. 26.304 × 304 =
27. 27.42 × 41 =
28. 28.303 × 305 =
29. 29.24 × 23 =
30. 30.195 × 191 =
31. 31.74 × 72 =
32. 32.28 × 29 =
33. 33.17 × 16 =
34. 34.16 × 17 =
35. 35.291 × 296 =
36. 36.63 × 62 =
37. 37.605 × 601 =
38. 38.299 × 298 =
39. 39.52 × 52 =
40. 40.41 × 41 =

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