Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 359 · 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. 1.607 × 603 =
2. 2.32 × 31 =
3. 3.79 × 77 =
4. 4.393 × 391 =
5. 5.69 × 68 =
6. 6.38 × 36 =
7. 7.593 × 595 =
8. 8.64 × 64 =
9. 9.21 × 24 =
10. 10.37 × 36 =
11. 11.31 × 31 =
12. 12.496 × 495 =
13. 13.82 × 82 =
14. 14.208 × 209 =
15. 15.293 × 293 =
16. 16.192 × 198 =
17. 17.299 × 291 =
18. 18.32 × 31 =
19. 19.19 × 18 =
20. 20.201 × 206 =
21. 21.504 × 506 =
22. 22.498 × 499 =
23. 23.43 × 44 =
24. 24.29 × 28 =
25. 25.79 × 78 =
26. 26.495 × 498 =
27. 27.61 × 61 =
28. 28.495 × 498 =
29. 29.63 × 61 =
30. 30.605 × 602 =
31. 31.87 × 89 =
32. 32.403 × 409 =
33. 33.31 × 32 =
34. 34.509 × 509 =
35. 35.397 × 398 =
36. 36.601 × 604 =
37. 37.296 × 292 =
38. 38.198 × 199 =
39. 39.64 × 61 =
40. 40.81 × 81 =

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