Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 875 · 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. 1.66 × 67 =
2. 2.504 × 502 =
3. 3.292 × 293 =
4. 4.61 × 62 =
5. 5.199 × 196 =
6. 6.33 × 34 =
7. 7.51 × 52 =
8. 8.593 × 598 =
9. 9.506 × 501 =
10. 10.61 × 62 =
11. 11.63 × 62 =
12. 12.599 × 599 =
13. 13.21 × 21 =
14. 14.298 × 296 =
15. 15.393 × 396 =
16. 16.495 × 499 =
17. 17.41 × 43 =
18. 18.198 × 196 =
19. 19.83 × 81 =
20. 20.29 × 26 =
21. 21.61 × 63 =
22. 22.49 × 49 =
23. 23.41 × 43 =
24. 24.39 × 37 =
25. 25.34 × 31 =
26. 26.303 × 301 =
27. 27.297 × 299 =
28. 28.198 × 198 =
29. 29.405 × 405 =
30. 30.83 × 81 =
31. 31.56 × 56 =
32. 32.81 × 82 =
33. 33.32 × 33 =
34. 34.46 × 49 =
35. 35.602 × 609 =
36. 36.53 × 53 =
37. 37.401 × 409 =
38. 38.503 × 508 =
39. 39.18 × 19 =
40. 40.494 × 494 =

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