Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 830 · 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. 1.47 × 47 =
2. 2.43 × 44 =
3. 3.84 × 84 =
4. 4.94 × 92 =
5. 5.393 × 397 =
6. 6.16 × 17 =
7. 7.194 × 194 =
8. 8.21 × 24 =
9. 9.195 × 194 =
10. 10.295 × 298 =
11. 11.59 × 56 =
12. 12.43 × 42 =
13. 13.82 × 81 =
14. 14.208 × 205 =
15. 15.604 × 603 =
16. 16.81 × 84 =
17. 17.37 × 38 =
18. 18.391 × 397 =
19. 19.605 × 606 =
20. 20.86 × 89 =
21. 21.54 × 52 =
22. 22.32 × 34 =
23. 23.306 × 302 =
24. 24.47 × 47 =
25. 25.17 × 19 =
26. 26.508 × 507 =
27. 27.76 × 78 =
28. 28.71 × 73 =
29. 29.502 × 503 =
30. 30.42 × 44 =
31. 31.68 × 67 =
32. 32.16 × 18 =
33. 33.83 × 81 =
34. 34.499 × 493 =
35. 35.24 × 21 =
36. 36.56 × 59 =
37. 37.507 × 503 =
38. 38.17 × 16 =
39. 39.24 × 24 =
40. 40.605 × 606 =

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