Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 99 · 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. 1.302 × 305 =
2. 2.33 × 33 =
3. 3.502 × 507 =
4. 4.498 × 498 =
5. 5.203 × 209 =
6. 6.82 × 82 =
7. 7.57 × 58 =
8. 8.86 × 89 =
9. 9.36 × 39 =
10. 10.62 × 64 =
11. 11.609 × 601 =
12. 12.94 × 91 =
13. 13.191 × 193 =
14. 14.79 × 76 =
15. 15.203 × 203 =
16. 16.79 × 78 =
17. 17.24 × 22 =
18. 18.501 × 501 =
19. 19.391 × 395 =
20. 20.94 × 91 =
21. 21.197 × 193 =
22. 22.205 × 206 =
23. 23.27 × 29 =
24. 24.207 × 203 =
25. 25.57 × 59 =
26. 26.595 × 598 =
27. 27.37 × 39 =
28. 28.21 × 23 =
29. 29.93 × 91 =
30. 30.33 × 32 =
31. 31.306 × 306 =
32. 32.493 × 493 =
33. 33.63 × 61 =
34. 34.37 × 39 =
35. 35.63 × 64 =
36. 36.293 × 293 =
37. 37.16 × 16 =
38. 38.29 × 28 =
39. 39.53 × 53 =
40. 40.89 × 88 =

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