Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 845 · 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. 1.192 × 197 =
2. 2.198 × 199 =
3. 3.79 × 79 =
4. 4.71 × 71 =
5. 5.503 × 504 =
6. 6.63 × 63 =
7. 7.299 × 296 =
8. 8.302 × 306 =
9. 9.408 × 407 =
10. 10.18 × 18 =
11. 11.94 × 91 =
12. 12.306 × 305 =
13. 13.498 × 492 =
14. 14.83 × 81 =
15. 15.33 × 31 =
16. 16.93 × 91 =
17. 17.401 × 408 =
18. 18.505 × 503 =
19. 19.73 × 71 =
20. 20.403 × 404 =
21. 21.91 × 92 =
22. 22.71 × 73 =
23. 23.602 × 602 =
24. 24.303 × 307 =
25. 25.203 × 209 =
26. 26.302 × 309 =
27. 27.49 × 49 =
28. 28.295 × 298 =
29. 29.26 × 29 =
30. 30.296 × 296 =
31. 31.36 × 36 =
32. 32.299 × 299 =
33. 33.208 × 201 =
34. 34.394 × 394 =
35. 35.36 × 36 =
36. 36.291 × 294 =
37. 37.48 × 46 =
38. 38.72 × 72 =
39. 39.491 × 499 =
40. 40.81 × 84 =

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