Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 563 · 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. 1.507 × 505 =
2. 2.205 × 206 =
3. 3.18 × 16 =
4. 4.609 × 605 =
5. 5.33 × 34 =
6. 6.297 × 294 =
7. 7.496 × 498 =
8. 8.47 × 49 =
9. 9.71 × 72 =
10. 10.29 × 28 =
11. 11.56 × 57 =
12. 12.88 × 89 =
13. 13.42 × 44 =
14. 14.506 × 503 =
15. 15.603 × 607 =
16. 16.209 × 208 =
17. 17.59 × 59 =
18. 18.33 × 32 =
19. 19.79 × 76 =
20. 20.404 × 409 =
21. 21.198 × 192 =
22. 22.83 × 84 =
23. 23.17 × 18 =
24. 24.37 × 37 =
25. 25.505 × 504 =
26. 26.28 × 26 =
27. 27.61 × 61 =
28. 28.209 × 206 =
29. 29.393 × 395 =
30. 30.37 × 39 =
31. 31.592 × 594 =
32. 32.46 × 49 =
33. 33.87 × 87 =
34. 34.29 × 28 =
35. 35.294 × 292 =
36. 36.598 × 594 =
37. 37.64 × 63 =
38. 38.306 × 306 =
39. 39.33 × 33 =
40. 40.94 × 94 =

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