Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 981 · 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. 1.409 × 408 =
2. 2.405 × 403 =
3. 3.59 × 56 =
4. 4.493 × 495 =
5. 5.28 × 28 =
6. 6.41 × 43 =
7. 7.197 × 199 =
8. 8.89 × 88 =
9. 9.57 × 58 =
10. 10.26 × 26 =
11. 11.79 × 77 =
12. 12.504 × 505 =
13. 13.201 × 209 =
14. 14.79 × 76 =
15. 15.17 × 17 =
16. 16.69 × 68 =
17. 17.399 × 394 =
18. 18.57 × 56 =
19. 19.401 × 405 =
20. 20.62 × 64 =
21. 21.302 × 307 =
22. 22.607 × 602 =
23. 23.53 × 51 =
24. 24.406 × 406 =
25. 25.27 × 29 =
26. 26.43 × 42 =
27. 27.191 × 192 =
28. 28.29 × 28 =
29. 29.27 × 26 =
30. 30.493 × 498 =
31. 31.37 × 39 =
32. 32.92 × 93 =
33. 33.193 × 195 =
34. 34.57 × 59 =
35. 35.601 × 609 =
36. 36.593 × 598 =
37. 37.293 × 291 =
38. 38.195 × 198 =
39. 39.192 × 196 =
40. 40.83 × 84 =

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