Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 167 · 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. 1.63 × 62 =
2. 2.93 × 92 =
3. 3.31 × 31 =
4. 4.202 × 205 =
5. 5.29 × 26 =
6. 6.64 × 63 =
7. 7.392 × 397 =
8. 8.61 × 61 =
9. 9.201 × 201 =
10. 10.202 × 201 =
11. 11.403 × 404 =
12. 12.604 × 605 =
13. 13.78 × 79 =
14. 14.57 × 58 =
15. 15.54 × 51 =
16. 16.31 × 32 =
17. 17.17 × 17 =
18. 18.409 × 408 =
19. 19.79 × 79 =
20. 20.308 × 301 =
21. 21.509 × 507 =
22. 22.295 × 295 =
23. 23.22 × 21 =
24. 24.198 × 199 =
25. 25.66 × 68 =
26. 26.193 × 196 =
27. 27.595 × 594 =
28. 28.598 × 596 =
29. 29.43 × 41 =
30. 30.72 × 71 =
31. 31.51 × 53 =
32. 32.309 × 302 =
33. 33.91 × 93 =
34. 34.305 × 307 =
35. 35.592 × 599 =
36. 36.406 × 407 =
37. 37.205 × 203 =
38. 38.503 × 507 =
39. 39.27 × 28 =
40. 40.26 × 28 =

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