Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 709 · 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. 1.59 × 59 =
2. 2.56 × 57 =
3. 3.73 × 71 =
4. 4.495 × 494 =
5. 5.79 × 77 =
6. 6.398 × 394 =
7. 7.39 × 39 =
8. 8.47 × 47 =
9. 9.602 × 604 =
10. 10.407 × 409 =
11. 11.61 × 64 =
12. 12.592 × 595 =
13. 13.78 × 78 =
14. 14.62 × 62 =
15. 15.33 × 33 =
16. 16.195 × 197 =
17. 17.401 × 408 =
18. 18.77 × 78 =
19. 19.89 × 86 =
20. 20.391 × 392 =
21. 21.206 × 205 =
22. 22.36 × 37 =
23. 23.66 × 66 =
24. 24.57 × 57 =
25. 25.604 × 601 =
26. 26.299 × 299 =
27. 27.76 × 77 =
28. 28.52 × 54 =
29. 29.89 × 89 =
30. 30.194 × 198 =
31. 31.607 × 604 =
32. 32.41 × 42 =
33. 33.405 × 409 =
34. 34.196 × 192 =
35. 35.72 × 71 =
36. 36.39 × 36 =
37. 37.24 × 24 =
38. 38.403 × 404 =
39. 39.198 × 199 =
40. 40.17 × 17 =

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