Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 345 · 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. 1.391 × 397 =
2. 2.193 × 198 =
3. 3.47 × 47 =
4. 4.22 × 24 =
5. 5.507 × 502 =
6. 6.299 × 296 =
7. 7.207 × 208 =
8. 8.68 × 67 =
9. 9.405 × 405 =
10. 10.74 × 72 =
11. 11.302 × 302 =
12. 12.197 × 196 =
13. 13.24 × 21 =
14. 14.73 × 73 =
15. 15.209 × 205 =
16. 16.204 × 206 =
17. 17.83 × 84 =
18. 18.19 × 18 =
19. 19.595 × 591 =
20. 20.22 × 22 =
21. 21.294 × 296 =
22. 22.66 × 66 =
23. 23.302 × 303 =
24. 24.302 × 302 =
25. 25.496 × 499 =
26. 26.198 × 196 =
27. 27.605 × 607 =
28. 28.209 × 205 =
29. 29.93 × 92 =
30. 30.59 × 58 =
31. 31.76 × 76 =
32. 32.494 × 491 =
33. 33.591 × 595 =
34. 34.32 × 34 =
35. 35.592 × 596 =
36. 36.192 × 192 =
37. 37.49 × 48 =
38. 38.64 × 61 =
39. 39.207 × 206 =
40. 40.301 × 307 =

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