Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 902 · 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. 1.307 × 307 =
2. 2.393 × 397 =
3. 3.49 × 49 =
4. 4.62 × 61 =
5. 5.498 × 499 =
6. 6.405 × 402 =
7. 7.41 × 43 =
8. 8.508 × 503 =
9. 9.81 × 81 =
10. 10.33 × 33 =
11. 11.33 × 31 =
12. 12.301 × 306 =
13. 13.62 × 64 =
14. 14.196 × 198 =
15. 15.297 × 292 =
16. 16.34 × 31 =
17. 17.17 × 17 =
18. 18.26 × 27 =
19. 19.26 × 27 =
20. 20.31 × 32 =
21. 21.21 × 21 =
22. 22.92 × 91 =
23. 23.59 × 59 =
24. 24.22 × 21 =
25. 25.49 × 48 =
26. 26.303 × 309 =
27. 27.297 × 294 =
28. 28.53 × 51 =
29. 29.37 × 38 =
30. 30.29 × 28 =
31. 31.202 × 209 =
32. 32.592 × 593 =
33. 33.28 × 26 =
34. 34.62 × 61 =
35. 35.296 × 299 =
36. 36.604 × 606 =
37. 37.61 × 64 =
38. 38.34 × 34 =
39. 39.91 × 91 =
40. 40.208 × 207 =

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