Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 25 · 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. 1.44 × 44 =
2. 2.51 × 54 =
3. 3.393 × 398 =
4. 4.78 × 79 =
5. 5.205 × 209 =
6. 6.54 × 51 =
7. 7.26 × 29 =
8. 8.406 × 401 =
9. 9.19 × 17 =
10. 10.58 × 56 =
11. 11.492 × 494 =
12. 12.299 × 299 =
13. 13.59 × 59 =
14. 14.406 × 403 =
15. 15.17 × 19 =
16. 16.72 × 73 =
17. 17.193 × 193 =
18. 18.592 × 592 =
19. 19.31 × 32 =
20. 20.78 × 78 =
21. 21.78 × 79 =
22. 22.18 × 16 =
23. 23.91 × 92 =
24. 24.601 × 608 =
25. 25.69 × 66 =
26. 26.31 × 31 =
27. 27.607 × 601 =
28. 28.58 × 58 =
29. 29.92 × 91 =
30. 30.59 × 59 =
31. 31.88 × 89 =
32. 32.301 × 308 =
33. 33.408 × 404 =
34. 34.93 × 94 =
35. 35.48 × 47 =
36. 36.294 × 297 =
37. 37.56 × 58 =
38. 38.52 × 51 =
39. 39.205 × 201 =
40. 40.604 × 608 =

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