Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 287 · 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. 1.391 × 392 =
2. 2.193 × 199 =
3. 3.503 × 508 =
4. 4.406 × 409 =
5. 5.404 × 409 =
6. 6.603 × 602 =
7. 7.596 × 596 =
8. 8.409 × 405 =
9. 9.78 × 76 =
10. 10.591 × 599 =
11. 11.202 × 201 =
12. 12.203 × 207 =
13. 13.52 × 54 =
14. 14.47 × 49 =
15. 15.205 × 205 =
16. 16.18 × 16 =
17. 17.18 × 19 =
18. 18.66 × 69 =
19. 19.33 × 33 =
20. 20.294 × 298 =
21. 21.59 × 59 =
22. 22.397 × 394 =
23. 23.392 × 397 =
24. 24.193 × 196 =
25. 25.398 × 391 =
26. 26.297 × 296 =
27. 27.298 × 292 =
28. 28.34 × 34 =
29. 29.609 × 602 =
30. 30.92 × 93 =
31. 31.292 × 297 =
32. 32.38 × 39 =
33. 33.44 × 42 =
34. 34.491 × 493 =
35. 35.62 × 61 =
36. 36.81 × 82 =
37. 37.506 × 508 =
38. 38.87 × 89 =
39. 39.296 × 297 =
40. 40.504 × 506 =

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