Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 412 · 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. 1.21 × 21 =
2. 2.297 × 291 =
3. 3.191 × 193 =
4. 4.506 × 504 =
5. 5.88 × 86 =
6. 6.592 × 598 =
7. 7.301 × 305 =
8. 8.68 × 67 =
9. 9.89 × 87 =
10. 10.84 × 82 =
11. 11.204 × 201 =
12. 12.17 × 16 =
13. 13.406 × 402 =
14. 14.44 × 42 =
15. 15.62 × 63 =
16. 16.36 × 39 =
17. 17.37 × 39 =
18. 18.81 × 81 =
19. 19.59 × 56 =
20. 20.82 × 84 =
21. 21.22 × 21 =
22. 22.66 × 69 =
23. 23.43 × 41 =
24. 24.406 × 406 =
25. 25.208 × 203 =
26. 26.204 × 201 =
27. 27.205 × 206 =
28. 28.201 × 204 =
29. 29.602 × 609 =
30. 30.53 × 52 =
31. 31.82 × 82 =
32. 32.302 × 301 =
33. 33.59 × 58 =
34. 34.602 × 601 =
35. 35.48 × 48 =
36. 36.197 × 199 =
37. 37.79 × 79 =
38. 38.59 × 59 =
39. 39.68 × 68 =
40. 40.594 × 596 =

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