Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 50 · 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. 1.394 × 392 =
2. 2.19 × 16 =
3. 3.28 × 28 =
4. 4.36 × 38 =
5. 5.206 × 209 =
6. 6.597 × 598 =
7. 7.79 × 79 =
8. 8.54 × 54 =
9. 9.503 × 504 =
10. 10.503 × 503 =
11. 11.58 × 56 =
12. 12.32 × 33 =
13. 13.404 × 409 =
14. 14.66 × 68 =
15. 15.46 × 49 =
16. 16.508 × 504 =
17. 17.43 × 42 =
18. 18.505 × 505 =
19. 19.29 × 29 =
20. 20.306 × 303 =
21. 21.56 × 57 =
22. 22.296 × 291 =
23. 23.82 × 81 =
24. 24.593 × 593 =
25. 25.199 × 193 =
26. 26.398 × 398 =
27. 27.63 × 63 =
28. 28.403 × 407 =
29. 29.53 × 53 =
30. 30.598 × 596 =
31. 31.194 × 193 =
32. 32.504 × 504 =
33. 33.76 × 79 =
34. 34.16 × 17 =
35. 35.508 × 503 =
36. 36.205 × 206 =
37. 37.52 × 54 =
38. 38.207 × 208 =
39. 39.53 × 54 =
40. 40.304 × 309 =

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