Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 609 · 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. 1.505 × 504 =
2. 2.31 × 31 =
3. 3.69 × 66 =
4. 4.57 × 57 =
5. 5.608 × 606 =
6. 6.53 × 54 =
7. 7.42 × 44 =
8. 8.42 × 41 =
9. 9.41 × 41 =
10. 10.33 × 34 =
11. 11.29 × 26 =
12. 12.53 × 52 =
13. 13.499 × 498 =
14. 14.77 × 79 =
15. 15.194 × 196 =
16. 16.81 × 83 =
17. 17.291 × 295 =
18. 18.198 × 195 =
19. 19.199 × 199 =
20. 20.598 × 599 =
21. 21.192 × 191 =
22. 22.195 × 194 =
23. 23.18 × 18 =
24. 24.28 × 27 =
25. 25.391 × 392 =
26. 26.16 × 18 =
27. 27.73 × 74 =
28. 28.26 × 27 =
29. 29.23 × 24 =
30. 30.23 × 21 =
31. 31.64 × 62 =
32. 32.94 × 93 =
33. 33.304 × 305 =
34. 34.66 × 66 =
35. 35.199 × 198 =
36. 36.87 × 86 =
37. 37.403 × 404 =
38. 38.39 × 38 =
39. 39.604 × 602 =
40. 40.291 × 298 =

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