Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 487 · 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. 1.202 × 203 =
2. 2.63 × 64 =
3. 3.92 × 91 =
4. 4.599 × 593 =
5. 5.63 × 61 =
6. 6.33 × 33 =
7. 7.78 × 79 =
8. 8.509 × 501 =
9. 9.597 × 596 =
10. 10.43 × 42 =
11. 11.601 × 606 =
12. 12.59 × 59 =
13. 13.499 × 499 =
14. 14.48 × 47 =
15. 15.292 × 297 =
16. 16.36 × 39 =
17. 17.302 × 304 =
18. 18.508 × 506 =
19. 19.398 × 396 =
20. 20.26 × 29 =
21. 21.196 × 197 =
22. 22.293 × 297 =
23. 23.62 × 63 =
24. 24.94 × 92 =
25. 25.593 × 599 =
26. 26.192 × 194 =
27. 27.192 × 197 =
28. 28.28 × 28 =
29. 29.43 × 41 =
30. 30.392 × 393 =
31. 31.33 × 33 =
32. 32.39 × 36 =
33. 33.39 × 39 =
34. 34.498 × 495 =
35. 35.292 × 299 =
36. 36.71 × 74 =
37. 37.82 × 82 =
38. 38.604 × 605 =
39. 39.404 × 404 =
40. 40.18 × 18 =

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