Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 655 · 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. 1.79 × 77 =
2. 2.195 × 197 =
3. 3.27 × 26 =
4. 4.57 × 56 =
5. 5.299 × 299 =
6. 6.191 × 195 =
7. 7.91 × 93 =
8. 8.197 × 195 =
9. 9.26 × 29 =
10. 10.93 × 94 =
11. 11.53 × 51 =
12. 12.295 × 295 =
13. 13.88 × 88 =
14. 14.32 × 34 =
15. 15.49 × 49 =
16. 16.64 × 63 =
17. 17.308 × 304 =
18. 18.19 × 17 =
19. 19.41 × 42 =
20. 20.42 × 41 =
21. 21.19 × 17 =
22. 22.79 × 78 =
23. 23.42 × 42 =
24. 24.596 × 597 =
25. 25.294 × 299 =
26. 26.508 × 507 =
27. 27.603 × 605 =
28. 28.305 × 307 =
29. 29.392 × 398 =
30. 30.51 × 51 =
31. 31.593 × 592 =
32. 32.303 × 307 =
33. 33.31 × 31 =
34. 34.309 × 307 =
35. 35.86 × 88 =
36. 36.403 × 406 =
37. 37.69 × 68 =
38. 38.39 × 39 =
39. 39.506 × 503 =
40. 40.43 × 42 =

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