Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 742 · 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. 1.17 × 18 =
2. 2.93 × 93 =
3. 3.22 × 24 =
4. 4.402 × 404 =
5. 5.57 × 59 =
6. 6.302 × 301 =
7. 7.37 × 39 =
8. 8.392 × 396 =
9. 9.82 × 82 =
10. 10.17 × 18 =
11. 11.493 × 499 =
12. 12.47 × 46 =
13. 13.499 × 492 =
14. 14.42 × 43 =
15. 15.36 × 36 =
16. 16.44 × 41 =
17. 17.301 × 301 =
18. 18.51 × 54 =
19. 19.592 × 593 =
20. 20.89 × 87 =
21. 21.609 × 606 =
22. 22.49 × 48 =
23. 23.84 × 84 =
24. 24.21 × 22 =
25. 25.606 × 609 =
26. 26.26 × 29 =
27. 27.88 × 87 =
28. 28.72 × 74 =
29. 29.62 × 61 =
30. 30.21 × 21 =
31. 31.38 × 39 =
32. 32.194 × 199 =
33. 33.19 × 17 =
34. 34.56 × 58 =
35. 35.291 × 293 =
36. 36.49 × 48 =
37. 37.79 × 76 =
38. 38.27 × 27 =
39. 39.496 × 495 =
40. 40.306 × 308 =

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