Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 701 · 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. 1.38 × 39 =
2. 2.392 × 394 =
3. 3.192 × 198 =
4. 4.42 × 43 =
5. 5.508 × 509 =
6. 6.81 × 81 =
7. 7.498 × 497 =
8. 8.505 × 508 =
9. 9.71 × 71 =
10. 10.86 × 87 =
11. 11.69 × 68 =
12. 12.79 × 76 =
13. 13.198 × 196 =
14. 14.34 × 34 =
15. 15.86 × 86 =
16. 16.21 × 24 =
17. 17.49 × 46 =
18. 18.86 × 88 =
19. 19.393 × 392 =
20. 20.192 × 193 =
21. 21.591 × 598 =
22. 22.63 × 64 =
23. 23.19 × 18 =
24. 24.298 × 292 =
25. 25.492 × 492 =
26. 26.93 × 92 =
27. 27.398 × 398 =
28. 28.18 × 19 =
29. 29.204 × 204 =
30. 30.291 × 297 =
31. 31.405 × 401 =
32. 32.72 × 71 =
33. 33.194 × 198 =
34. 34.37 × 37 =
35. 35.38 × 36 =
36. 36.204 × 205 =
37. 37.397 × 392 =
38. 38.304 × 303 =
39. 39.408 × 406 =
40. 40.194 × 199 =

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