Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 465 · 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. 1.31 × 32 =
2. 2.91 × 91 =
3. 3.32 × 31 =
4. 4.599 × 599 =
5. 5.22 × 21 =
6. 6.506 × 504 =
7. 7.47 × 47 =
8. 8.591 × 591 =
9. 9.29 × 27 =
10. 10.33 × 33 =
11. 11.66 × 68 =
12. 12.22 × 23 =
13. 13.23 × 22 =
14. 14.57 × 59 =
15. 15.68 × 67 =
16. 16.409 × 405 =
17. 17.69 × 66 =
18. 18.203 × 209 =
19. 19.47 × 49 =
20. 20.506 × 503 =
21. 21.24 × 21 =
22. 22.22 × 22 =
23. 23.191 × 197 =
24. 24.504 × 508 =
25. 25.496 × 492 =
26. 26.193 × 199 =
27. 27.597 × 596 =
28. 28.33 × 31 =
29. 29.21 × 24 =
30. 30.33 × 34 =
31. 31.299 × 291 =
32. 32.597 × 593 =
33. 33.299 × 296 =
34. 34.297 × 296 =
35. 35.18 × 17 =
36. 36.309 × 304 =
37. 37.592 × 591 =
38. 38.18 × 18 =
39. 39.501 × 501 =
40. 40.308 × 304 =

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