Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 580 · 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. 1.79 × 76 =
2. 2.59 × 58 =
3. 3.84 × 84 =
4. 4.609 × 607 =
5. 5.205 × 207 =
6. 6.79 × 78 =
7. 7.46 × 49 =
8. 8.607 × 607 =
9. 9.84 × 82 =
10. 10.493 × 497 =
11. 11.26 × 27 =
12. 12.27 × 27 =
13. 13.403 × 404 =
14. 14.49 × 46 =
15. 15.497 × 495 =
16. 16.296 × 292 =
17. 17.302 × 308 =
18. 18.27 × 28 =
19. 19.82 × 81 =
20. 20.203 × 208 =
21. 21.84 × 83 =
22. 22.23 × 23 =
23. 23.293 × 295 =
24. 24.79 × 78 =
25. 25.21 × 21 =
26. 26.78 × 78 =
27. 27.606 × 607 =
28. 28.86 × 89 =
29. 29.39 × 38 =
30. 30.24 × 21 =
31. 31.402 × 405 =
32. 32.79 × 77 =
33. 33.57 × 57 =
34. 34.291 × 291 =
35. 35.202 × 206 =
36. 36.22 × 21 =
37. 37.21 × 24 =
38. 38.302 × 303 =
39. 39.19 × 17 =
40. 40.73 × 74 =

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