Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 656 · 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. 1.81 × 81 =
2. 2.506 × 506 =
3. 3.23 × 21 =
4. 4.307 × 303 =
5. 5.501 × 507 =
6. 6.22 × 21 =
7. 7.198 × 192 =
8. 8.79 × 76 =
9. 9.202 × 203 =
10. 10.49 × 47 =
11. 11.89 × 89 =
12. 12.91 × 91 =
13. 13.507 × 504 =
14. 14.57 × 59 =
15. 15.197 × 199 =
16. 16.24 × 23 =
17. 17.51 × 54 =
18. 18.209 × 203 =
19. 19.44 × 43 =
20. 20.42 × 41 =
21. 21.392 × 394 =
22. 22.78 × 79 =
23. 23.297 × 297 =
24. 24.29 × 27 =
25. 25.16 × 17 =
26. 26.608 × 602 =
27. 27.399 × 398 =
28. 28.24 × 21 =
29. 29.507 × 501 =
30. 30.306 × 305 =
31. 31.203 × 204 =
32. 32.308 × 301 =
33. 33.16 × 17 =
34. 34.41 × 44 =
35. 35.202 × 209 =
36. 36.207 × 205 =
37. 37.43 × 41 =
38. 38.397 × 392 =
39. 39.91 × 91 =
40. 40.491 × 495 =

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