Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 186 · 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. 1.208 × 202 =
2. 2.49 × 46 =
3. 3.59 × 57 =
4. 4.28 × 29 =
5. 5.402 × 407 =
6. 6.392 × 396 =
7. 7.409 × 405 =
8. 8.407 × 401 =
9. 9.83 × 83 =
10. 10.78 × 76 =
11. 11.79 × 76 =
12. 12.52 × 52 =
13. 13.46 × 46 =
14. 14.62 × 62 =
15. 15.64 × 62 =
16. 16.34 × 33 =
17. 17.44 × 41 =
18. 18.18 × 19 =
19. 19.43 × 42 =
20. 20.28 × 26 =
21. 21.74 × 71 =
22. 22.34 × 31 =
23. 23.599 × 595 =
24. 24.291 × 295 =
25. 25.19 × 18 =
26. 26.38 × 39 =
27. 27.68 × 66 =
28. 28.491 × 499 =
29. 29.91 × 93 =
30. 30.198 × 196 =
31. 31.292 × 298 =
32. 32.599 × 594 =
33. 33.19 × 18 =
34. 34.498 × 498 =
35. 35.393 × 395 =
36. 36.64 × 64 =
37. 37.61 × 62 =
38. 38.294 × 293 =
39. 39.41 × 44 =
40. 40.594 × 598 =

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