Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 13 · 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. 1.205 × 204 =
2. 2.36 × 37 =
3. 3.47 × 47 =
4. 4.209 × 208 =
5. 5.191 × 195 =
6. 6.67 × 67 =
7. 7.507 × 504 =
8. 8.42 × 43 =
9. 9.593 × 592 =
10. 10.94 × 94 =
11. 11.27 × 26 =
12. 12.59 × 59 =
13. 13.28 × 27 =
14. 14.56 × 59 =
15. 15.296 × 295 =
16. 16.196 × 191 =
17. 17.307 × 302 =
18. 18.56 × 58 =
19. 19.207 × 204 =
20. 20.89 × 88 =
21. 21.38 × 37 =
22. 22.66 × 69 =
23. 23.74 × 73 =
24. 24.89 × 88 =
25. 25.59 × 59 =
26. 26.47 × 48 =
27. 27.41 × 42 =
28. 28.79 × 77 =
29. 29.506 × 501 =
30. 30.494 × 493 =
31. 31.18 × 16 =
32. 32.393 × 391 =
33. 33.41 × 43 =
34. 34.299 × 295 =
35. 35.54 × 54 =
36. 36.68 × 68 =
37. 37.302 × 309 =
38. 38.87 × 87 =
39. 39.403 × 409 =
40. 40.204 × 207 =

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