Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 85 · 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. 1.56 × 56 =
2. 2.22 × 22 =
3. 3.41 × 43 =
4. 4.203 × 202 =
5. 5.19 × 18 =
6. 6.292 × 291 =
7. 7.32 × 31 =
8. 8.301 × 305 =
9. 9.27 × 29 =
10. 10.51 × 51 =
11. 11.299 × 296 =
12. 12.28 × 27 =
13. 13.292 × 295 =
14. 14.87 × 87 =
15. 15.496 × 499 =
16. 16.68 × 66 =
17. 17.74 × 72 =
18. 18.78 × 79 =
19. 19.207 × 202 =
20. 20.43 × 44 =
21. 21.495 × 493 =
22. 22.28 × 29 =
23. 23.33 × 32 =
24. 24.49 × 47 =
25. 25.602 × 608 =
26. 26.86 × 87 =
27. 27.72 × 72 =
28. 28.492 × 496 =
29. 29.29 × 27 =
30. 30.84 × 81 =
31. 31.31 × 31 =
32. 32.501 × 508 =
33. 33.503 × 504 =
34. 34.591 × 594 =
35. 35.26 × 29 =
36. 36.54 × 52 =
37. 37.501 × 507 =
38. 38.67 × 68 =
39. 39.609 × 604 =
40. 40.42 × 41 =

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