Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 626 · 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. 1.503 × 504 =
2. 2.307 × 307 =
3. 3.199 × 197 =
4. 4.18 × 19 =
5. 5.306 × 309 =
6. 6.42 × 43 =
7. 7.51 × 53 =
8. 8.501 × 503 =
9. 9.54 × 52 =
10. 10.32 × 32 =
11. 11.31 × 34 =
12. 12.42 × 42 =
13. 13.31 × 33 =
14. 14.76 × 78 =
15. 15.47 × 49 =
16. 16.199 × 197 =
17. 17.297 × 298 =
18. 18.305 × 308 =
19. 19.62 × 61 =
20. 20.403 × 407 =
21. 21.495 × 492 =
22. 22.397 × 391 =
23. 23.21 × 22 =
24. 24.201 × 202 =
25. 25.46 × 49 =
26. 26.406 × 409 =
27. 27.293 × 294 =
28. 28.396 × 397 =
29. 29.394 × 391 =
30. 30.205 × 202 =
31. 31.46 × 49 =
32. 32.506 × 504 =
33. 33.77 × 79 =
34. 34.39 × 39 =
35. 35.66 × 69 =
36. 36.22 × 23 =
37. 37.497 × 497 =
38. 38.301 × 303 =
39. 39.497 × 495 =
40. 40.78 × 79 =

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