Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 689 · 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. 1.292 × 291 =
2. 2.39 × 37 =
3. 3.508 × 504 =
4. 4.43 × 44 =
5. 5.17 × 16 =
6. 6.49 × 49 =
7. 7.51 × 52 =
8. 8.43 × 41 =
9. 9.52 × 54 =
10. 10.51 × 51 =
11. 11.39 × 39 =
12. 12.502 × 501 =
13. 13.208 × 205 =
14. 14.606 × 607 =
15. 15.51 × 54 =
16. 16.598 × 593 =
17. 17.29 × 29 =
18. 18.27 × 26 =
19. 19.299 × 292 =
20. 20.498 × 494 =
21. 21.84 × 84 =
22. 22.408 × 406 =
23. 23.591 × 598 =
24. 24.79 × 79 =
25. 25.28 × 29 =
26. 26.202 × 202 =
27. 27.393 × 396 =
28. 28.56 × 59 =
29. 29.303 × 303 =
30. 30.72 × 71 =
31. 31.295 × 297 =
32. 32.504 × 505 =
33. 33.64 × 62 =
34. 34.89 × 89 =
35. 35.392 × 392 =
36. 36.505 × 508 =
37. 37.291 × 298 =
38. 38.303 × 309 =
39. 39.54 × 51 =
40. 40.194 × 195 =

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