Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 401 · 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. 1.28 × 29 =
2. 2.18 × 17 =
3. 3.305 × 307 =
4. 4.91 × 94 =
5. 5.503 × 503 =
6. 6.606 × 608 =
7. 7.94 × 91 =
8. 8.71 × 74 =
9. 9.391 × 395 =
10. 10.59 × 59 =
11. 11.601 × 601 =
12. 12.47 × 46 =
13. 13.595 × 594 =
14. 14.291 × 291 =
15. 15.39 × 37 =
16. 16.198 × 198 =
17. 17.66 × 66 =
18. 18.598 × 591 =
19. 19.303 × 303 =
20. 20.396 × 397 =
21. 21.26 × 29 =
22. 22.592 × 591 =
23. 23.16 × 19 =
24. 24.87 × 88 =
25. 25.398 × 397 =
26. 26.496 × 496 =
27. 27.91 × 91 =
28. 28.492 × 492 =
29. 29.192 × 193 =
30. 30.36 × 38 =
31. 31.208 × 209 =
32. 32.33 × 33 =
33. 33.592 × 596 =
34. 34.41 × 44 =
35. 35.492 × 499 =
36. 36.31 × 31 =
37. 37.302 × 302 =
38. 38.509 × 504 =
39. 39.33 × 31 =
40. 40.403 × 408 =

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