Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 151 · 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. 1.37 × 39 =
2. 2.64 × 64 =
3. 3.398 × 391 =
4. 4.17 × 19 =
5. 5.308 × 305 =
6. 6.58 × 58 =
7. 7.67 × 66 =
8. 8.61 × 64 =
9. 9.54 × 53 =
10. 10.47 × 46 =
11. 11.39 × 38 =
12. 12.29 × 27 =
13. 13.391 × 399 =
14. 14.93 × 91 =
15. 15.602 × 607 =
16. 16.87 × 89 =
17. 17.394 × 397 =
18. 18.39 × 38 =
19. 19.66 × 66 =
20. 20.46 × 47 =
21. 21.81 × 83 =
22. 22.69 × 69 =
23. 23.76 × 79 =
24. 24.503 × 502 =
25. 25.404 × 405 =
26. 26.82 × 84 =
27. 27.604 × 602 =
28. 28.497 × 495 =
29. 29.204 × 203 =
30. 30.61 × 62 =
31. 31.58 × 57 =
32. 32.76 × 77 =
33. 33.296 × 299 =
34. 34.504 × 501 =
35. 35.502 × 506 =
36. 36.53 × 54 =
37. 37.53 × 54 =
38. 38.32 × 32 =
39. 39.504 × 507 =
40. 40.609 × 607 =

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