Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 912 · 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. 1.78 × 77 =
2. 2.599 × 593 =
3. 3.28 × 27 =
4. 4.44 × 43 =
5. 5.33 × 33 =
6. 6.46 × 48 =
7. 7.501 × 508 =
8. 8.399 × 395 =
9. 9.64 × 63 =
10. 10.51 × 54 =
11. 11.58 × 59 =
12. 12.294 × 298 =
13. 13.598 × 597 =
14. 14.497 × 494 =
15. 15.308 × 301 =
16. 16.292 × 291 =
17. 17.194 × 199 =
18. 18.27 × 27 =
19. 19.508 × 506 =
20. 20.49 × 48 =
21. 21.301 × 301 =
22. 22.81 × 84 =
23. 23.86 × 89 =
24. 24.504 × 505 =
25. 25.597 × 594 =
26. 26.304 × 305 =
27. 27.83 × 83 =
28. 28.56 × 56 =
29. 29.71 × 72 =
30. 30.78 × 76 =
31. 31.94 × 94 =
32. 32.502 × 509 =
33. 33.401 × 404 =
34. 34.33 × 31 =
35. 35.42 × 43 =
36. 36.509 × 504 =
37. 37.202 × 203 =
38. 38.206 × 206 =
39. 39.57 × 59 =
40. 40.71 × 71 =

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