Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 979 · 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. 1.203 × 202 =
2. 2.91 × 91 =
3. 3.306 × 303 =
4. 4.19 × 19 =
5. 5.29 × 28 =
6. 6.69 × 68 =
7. 7.595 × 591 =
8. 8.17 × 18 =
9. 9.44 × 44 =
10. 10.509 × 504 =
11. 11.503 × 502 =
12. 12.591 × 591 =
13. 13.308 × 308 =
14. 14.202 × 207 =
15. 15.505 × 501 =
16. 16.81 × 81 =
17. 17.298 × 294 =
18. 18.42 × 41 =
19. 19.48 × 47 =
20. 20.507 × 505 =
21. 21.62 × 61 =
22. 22.204 × 205 =
23. 23.298 × 294 =
24. 24.76 × 79 =
25. 25.403 × 408 =
26. 26.59 × 59 =
27. 27.39 × 37 =
28. 28.17 × 17 =
29. 29.46 × 49 =
30. 30.43 × 42 =
31. 31.68 × 68 =
32. 32.495 × 494 =
33. 33.18 × 18 =
34. 34.603 × 606 =
35. 35.192 × 192 =
36. 36.82 × 84 =
37. 37.86 × 89 =
38. 38.291 × 295 =
39. 39.507 × 507 =
40. 40.87 × 86 =

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