Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 516 · 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. 1.207 × 206 =
2. 2.61 × 64 =
3. 3.71 × 74 =
4. 4.499 × 491 =
5. 5.43 × 44 =
6. 6.52 × 51 =
7. 7.503 × 504 =
8. 8.602 × 601 =
9. 9.86 × 87 =
10. 10.506 × 507 =
11. 11.194 × 192 =
12. 12.201 × 204 =
13. 13.39 × 39 =
14. 14.297 × 293 =
15. 15.197 × 198 =
16. 16.597 × 598 =
17. 17.394 × 392 =
18. 18.408 × 403 =
19. 19.32 × 31 =
20. 20.199 × 197 =
21. 21.204 × 202 =
22. 22.36 × 39 =
23. 23.18 × 18 =
24. 24.403 × 402 =
25. 25.39 × 38 =
26. 26.609 × 607 =
27. 27.495 × 495 =
28. 28.492 × 495 =
29. 29.293 × 298 =
30. 30.43 × 43 =
31. 31.26 × 26 =
32. 32.83 × 82 =
33. 33.54 × 51 =
34. 34.42 × 41 =
35. 35.197 × 192 =
36. 36.51 × 53 =
37. 37.32 × 33 =
38. 38.408 × 409 =
39. 39.402 × 408 =
40. 40.397 × 394 =

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