Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 585 · 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. 1.91 × 91 =
2. 2.39 × 39 =
3. 3.41 × 44 =
4. 4.91 × 91 =
5. 5.28 × 26 =
6. 6.37 × 39 =
7. 7.291 × 295 =
8. 8.41 × 42 =
9. 9.61 × 61 =
10. 10.56 × 56 =
11. 11.397 × 391 =
12. 12.591 × 594 =
13. 13.192 × 193 =
14. 14.603 × 609 =
15. 15.293 × 295 =
16. 16.209 × 209 =
17. 17.203 × 207 =
18. 18.17 × 19 =
19. 19.509 × 505 =
20. 20.201 × 207 =
21. 21.54 × 53 =
22. 22.38 × 36 =
23. 23.16 × 16 =
24. 24.198 × 197 =
25. 25.298 × 294 =
26. 26.31 × 34 =
27. 27.36 × 36 =
28. 28.44 × 41 =
29. 29.69 × 69 =
30. 30.302 × 307 =
31. 31.41 × 42 =
32. 32.303 × 308 =
33. 33.33 × 33 =
34. 34.67 × 69 =
35. 35.63 × 61 =
36. 36.28 × 27 =
37. 37.56 × 56 =
38. 38.403 × 408 =
39. 39.83 × 82 =
40. 40.72 × 74 =

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