Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 713 · 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. 1.204 × 207 =
2. 2.91 × 92 =
3. 3.91 × 91 =
4. 4.194 × 198 =
5. 5.191 × 194 =
6. 6.206 × 206 =
7. 7.23 × 23 =
8. 8.391 × 399 =
9. 9.292 × 298 =
10. 10.17 × 17 =
11. 11.31 × 32 =
12. 12.66 × 66 =
13. 13.57 × 59 =
14. 14.49 × 48 =
15. 15.94 × 91 =
16. 16.495 × 496 =
17. 17.493 × 498 =
18. 18.596 × 594 =
19. 19.49 × 46 =
20. 20.406 × 402 =
21. 21.303 × 308 =
22. 22.29 × 29 =
23. 23.398 × 393 =
24. 24.595 × 594 =
25. 25.86 × 86 =
26. 26.302 × 309 =
27. 27.53 × 52 =
28. 28.196 × 192 =
29. 29.89 × 88 =
30. 30.194 × 191 =
31. 31.202 × 204 =
32. 32.16 × 18 =
33. 33.203 × 205 =
34. 34.79 × 77 =
35. 35.84 × 84 =
36. 36.26 × 26 =
37. 37.92 × 93 =
38. 38.81 × 82 =
39. 39.494 × 495 =
40. 40.37 × 37 =

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