Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 304 · 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. 1.407 × 402 =
2. 2.82 × 83 =
3. 3.22 × 24 =
4. 4.204 × 209 =
5. 5.498 × 493 =
6. 6.88 × 86 =
7. 7.32 × 33 =
8. 8.18 × 19 =
9. 9.497 × 494 =
10. 10.598 × 593 =
11. 11.19 × 16 =
12. 12.497 × 496 =
13. 13.78 × 76 =
14. 14.408 × 403 =
15. 15.46 × 48 =
16. 16.407 × 409 =
17. 17.27 × 29 =
18. 18.67 × 66 =
19. 19.73 × 74 =
20. 20.609 × 605 =
21. 21.26 × 29 =
22. 22.22 × 24 =
23. 23.79 × 77 =
24. 24.36 × 37 =
25. 25.402 × 402 =
26. 26.41 × 41 =
27. 27.34 × 32 =
28. 28.68 × 69 =
29. 29.508 × 504 =
30. 30.58 × 57 =
31. 31.392 × 396 =
32. 32.89 × 89 =
33. 33.69 × 68 =
34. 34.54 × 54 =
35. 35.31 × 31 =
36. 36.595 × 598 =
37. 37.47 × 46 =
38. 38.495 × 491 =
39. 39.505 × 505 =
40. 40.599 × 596 =

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