Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 103 · 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. 1.72 × 72 =
2. 2.301 × 308 =
3. 3.31 × 31 =
4. 4.602 × 601 =
5. 5.79 × 79 =
6. 6.509 × 507 =
7. 7.51 × 54 =
8. 8.32 × 34 =
9. 9.27 × 27 =
10. 10.19 × 19 =
11. 11.408 × 401 =
12. 12.399 × 396 =
13. 13.67 × 69 =
14. 14.69 × 69 =
15. 15.192 × 198 =
16. 16.86 × 89 =
17. 17.197 × 196 =
18. 18.506 × 501 =
19. 19.293 × 299 =
20. 20.294 × 292 =
21. 21.57 × 58 =
22. 22.27 × 26 =
23. 23.92 × 94 =
24. 24.71 × 72 =
25. 25.19 × 16 =
26. 26.198 × 196 =
27. 27.86 × 89 =
28. 28.59 × 56 =
29. 29.596 × 599 =
30. 30.71 × 72 =
31. 31.293 × 299 =
32. 32.193 × 199 =
33. 33.91 × 93 =
34. 34.296 × 291 =
35. 35.92 × 92 =
36. 36.63 × 64 =
37. 37.87 × 89 =
38. 38.206 × 204 =
39. 39.406 × 406 =
40. 40.21 × 24 =

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