Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 274 · 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. 1.205 × 203 =
2. 2.505 × 508 =
3. 3.307 × 302 =
4. 4.495 × 497 =
5. 5.42 × 41 =
6. 6.64 × 64 =
7. 7.74 × 73 =
8. 8.82 × 83 =
9. 9.607 × 609 =
10. 10.296 × 296 =
11. 11.42 × 41 =
12. 12.206 × 201 =
13. 13.64 × 63 =
14. 14.86 × 86 =
15. 15.599 × 596 =
16. 16.507 × 501 =
17. 17.292 × 299 =
18. 18.491 × 499 =
19. 19.59 × 59 =
20. 20.91 × 92 =
21. 21.57 × 57 =
22. 22.33 × 32 =
23. 23.82 × 81 =
24. 24.26 × 26 =
25. 25.18 × 19 =
26. 26.21 × 21 =
27. 27.71 × 71 =
28. 28.83 × 82 =
29. 29.57 × 59 =
30. 30.41 × 44 =
31. 31.69 × 69 =
32. 32.61 × 64 =
33. 33.308 × 308 =
34. 34.54 × 51 =
35. 35.204 × 209 =
36. 36.67 × 67 =
37. 37.206 × 205 =
38. 38.68 × 67 =
39. 39.196 × 191 =
40. 40.29 × 28 =

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