Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 806 · 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. 1.29 × 28 =
2. 2.77 × 77 =
3. 3.42 × 41 =
4. 4.391 × 394 =
5. 5.504 × 505 =
6. 6.298 × 296 =
7. 7.43 × 42 =
8. 8.397 × 393 =
9. 9.86 × 89 =
10. 10.76 × 77 =
11. 11.409 × 405 =
12. 12.88 × 86 =
13. 13.397 × 395 =
14. 14.89 × 86 =
15. 15.591 × 599 =
16. 16.308 × 301 =
17. 17.604 × 603 =
18. 18.297 × 296 =
19. 19.21 × 23 =
20. 20.89 × 89 =
21. 21.88 × 88 =
22. 22.47 × 49 =
23. 23.52 × 53 =
24. 24.493 × 497 =
25. 25.28 × 29 =
26. 26.88 × 86 =
27. 27.493 × 498 =
28. 28.191 × 196 =
29. 29.607 × 605 =
30. 30.81 × 83 =
31. 31.77 × 79 =
32. 32.306 × 302 =
33. 33.596 × 598 =
34. 34.302 × 305 =
35. 35.408 × 403 =
36. 36.22 × 22 =
37. 37.193 × 191 =
38. 38.192 × 196 =
39. 39.198 × 198 =
40. 40.28 × 28 =

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