Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 789 · 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. 1.304 × 302 =
2. 2.19 × 18 =
3. 3.496 × 495 =
4. 4.205 × 201 =
5. 5.47 × 49 =
6. 6.37 × 36 =
7. 7.191 × 193 =
8. 8.604 × 604 =
9. 9.498 × 491 =
10. 10.17 × 17 =
11. 11.39 × 39 =
12. 12.68 × 66 =
13. 13.64 × 61 =
14. 14.93 × 93 =
15. 15.86 × 89 =
16. 16.86 × 86 =
17. 17.79 × 77 =
18. 18.48 × 48 =
19. 19.37 × 38 =
20. 20.23 × 22 =
21. 21.19 × 16 =
22. 22.295 × 299 =
23. 23.602 × 601 =
24. 24.89 × 87 =
25. 25.47 × 47 =
26. 26.298 × 292 =
27. 27.93 × 93 =
28. 28.204 × 208 =
29. 29.82 × 81 =
30. 30.82 × 82 =
31. 31.81 × 84 =
32. 32.69 × 69 =
33. 33.203 × 203 =
34. 34.24 × 23 =
35. 35.68 × 66 =
36. 36.64 × 61 =
37. 37.57 × 59 =
38. 38.38 × 38 =
39. 39.78 × 77 =
40. 40.69 × 67 =

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