Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 168 · 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. 1.84 × 82 =
2. 2.59 × 57 =
3. 3.606 × 604 =
4. 4.59 × 57 =
5. 5.18 × 18 =
6. 6.83 × 82 =
7. 7.81 × 83 =
8. 8.39 × 38 =
9. 9.409 × 402 =
10. 10.308 × 305 =
11. 11.62 × 61 =
12. 12.49 × 48 =
13. 13.48 × 46 =
14. 14.92 × 91 =
15. 15.21 × 24 =
16. 16.33 × 33 =
17. 17.209 × 207 =
18. 18.207 × 201 =
19. 19.67 × 66 =
20. 20.299 × 292 =
21. 21.69 × 69 =
22. 22.191 × 191 =
23. 23.193 × 196 =
24. 24.67 × 67 =
25. 25.497 × 494 =
26. 26.201 × 206 =
27. 27.51 × 54 =
28. 28.22 × 24 =
29. 29.592 × 594 =
30. 30.307 × 308 =
31. 31.497 × 499 =
32. 32.57 × 56 =
33. 33.207 × 204 =
34. 34.24 × 23 =
35. 35.193 × 192 =
36. 36.409 × 406 =
37. 37.37 × 37 =
38. 38.76 × 79 =
39. 39.403 × 408 =
40. 40.201 × 208 =

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