Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 801 · 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. 1.63 × 62 =
2. 2.87 × 89 =
3. 3.18 × 17 =
4. 4.29 × 29 =
5. 5.26 × 27 =
6. 6.491 × 499 =
7. 7.38 × 39 =
8. 8.396 × 395 =
9. 9.194 × 197 =
10. 10.495 × 498 =
11. 11.506 × 502 =
12. 12.496 × 493 =
13. 13.393 × 395 =
14. 14.192 × 199 =
15. 15.88 × 86 =
16. 16.298 × 294 =
17. 17.27 × 27 =
18. 18.304 × 302 =
19. 19.83 × 83 =
20. 20.42 × 41 =
21. 21.395 × 393 =
22. 22.27 × 29 =
23. 23.61 × 64 =
24. 24.48 × 48 =
25. 25.397 × 398 =
26. 26.51 × 51 =
27. 27.94 × 92 =
28. 28.297 × 298 =
29. 29.493 × 495 =
30. 30.18 × 18 =
31. 31.31 × 32 =
32. 32.34 × 32 =
33. 33.86 × 89 =
34. 34.31 × 34 =
35. 35.507 × 502 =
36. 36.24 × 21 =
37. 37.39 × 39 =
38. 38.393 × 396 =
39. 39.42 × 44 =
40. 40.26 × 28 =

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