Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 517 · 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. 1.301 × 307 =
2. 2.93 × 92 =
3. 3.206 × 202 =
4. 4.61 × 64 =
5. 5.28 × 26 =
6. 6.409 × 407 =
7. 7.41 × 43 =
8. 8.198 × 193 =
9. 9.64 × 61 =
10. 10.595 × 593 =
11. 11.404 × 402 =
12. 12.29 × 26 =
13. 13.208 × 209 =
14. 14.88 × 87 =
15. 15.192 × 192 =
16. 16.297 × 299 =
17. 17.22 × 21 =
18. 18.202 × 206 =
19. 19.493 × 493 =
20. 20.202 × 205 =
21. 21.29 × 27 =
22. 22.503 × 505 =
23. 23.52 × 53 =
24. 24.79 × 79 =
25. 25.82 × 82 =
26. 26.307 × 301 =
27. 27.204 × 201 =
28. 28.398 × 395 =
29. 29.204 × 201 =
30. 30.395 × 399 =
31. 31.395 × 398 =
32. 32.17 × 17 =
33. 33.23 × 23 =
34. 34.52 × 54 =
35. 35.28 × 26 =
36. 36.61 × 62 =
37. 37.406 × 401 =
38. 38.306 × 304 =
39. 39.17 × 19 =
40. 40.92 × 92 =

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