Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 173 · 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. 1.604 × 605 =
2. 2.202 × 208 =
3. 3.42 × 41 =
4. 4.91 × 91 =
5. 5.409 × 407 =
6. 6.44 × 41 =
7. 7.592 × 595 =
8. 8.38 × 39 =
9. 9.73 × 72 =
10. 10.196 × 198 =
11. 11.198 × 198 =
12. 12.68 × 68 =
13. 13.599 × 593 =
14. 14.41 × 41 =
15. 15.49 × 48 =
16. 16.31 × 32 =
17. 17.406 × 405 =
18. 18.392 × 391 =
19. 19.27 × 26 =
20. 20.395 × 392 =
21. 21.89 × 88 =
22. 22.294 × 294 =
23. 23.194 × 197 =
24. 24.81 × 83 =
25. 25.196 × 198 =
26. 26.28 × 27 =
27. 27.23 × 23 =
28. 28.59 × 59 =
29. 29.47 × 49 =
30. 30.402 × 408 =
31. 31.36 × 39 =
32. 32.299 × 292 =
33. 33.602 × 608 =
34. 34.594 × 597 =
35. 35.26 × 28 =
36. 36.46 × 49 =
37. 37.93 × 91 =
38. 38.89 × 87 =
39. 39.82 × 83 =
40. 40.507 × 504 =

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