Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 721 · 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. 1.506 × 505 =
2. 2.609 × 606 =
3. 3.207 × 203 =
4. 4.23 × 21 =
5. 5.59 × 59 =
6. 6.202 × 207 =
7. 7.84 × 81 =
8. 8.58 × 57 =
9. 9.32 × 34 =
10. 10.594 × 593 =
11. 11.78 × 76 =
12. 12.206 × 204 =
13. 13.88 × 86 =
14. 14.48 × 46 =
15. 15.89 × 88 =
16. 16.598 × 593 =
17. 17.594 × 593 =
18. 18.403 × 403 =
19. 19.61 × 64 =
20. 20.41 × 43 =
21. 21.291 × 292 =
22. 22.53 × 53 =
23. 23.603 × 609 =
24. 24.71 × 71 =
25. 25.54 × 52 =
26. 26.52 × 51 =
27. 27.28 × 27 =
28. 28.295 × 295 =
29. 29.406 × 405 =
30. 30.79 × 79 =
31. 31.94 × 94 =
32. 32.29 × 29 =
33. 33.59 × 58 =
34. 34.74 × 71 =
35. 35.16 × 16 =
36. 36.395 × 394 =
37. 37.597 × 591 =
38. 38.499 × 498 =
39. 39.391 × 393 =
40. 40.309 × 305 =

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