Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 330 · 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. 1.403 × 406 =
2. 2.34 × 31 =
3. 3.79 × 78 =
4. 4.52 × 53 =
5. 5.68 × 68 =
6. 6.63 × 62 =
7. 7.595 × 591 =
8. 8.296 × 293 =
9. 9.209 × 209 =
10. 10.82 × 82 =
11. 11.207 × 208 =
12. 12.603 × 603 =
13. 13.39 × 38 =
14. 14.509 × 506 =
15. 15.307 × 309 =
16. 16.32 × 31 =
17. 17.34 × 34 =
18. 18.198 × 192 =
19. 19.491 × 496 =
20. 20.67 × 66 =
21. 21.16 × 19 =
22. 22.51 × 52 =
23. 23.206 × 208 =
24. 24.592 × 599 =
25. 25.605 × 608 =
26. 26.28 × 28 =
27. 27.393 × 399 =
28. 28.46 × 49 =
29. 29.309 × 304 =
30. 30.64 × 61 =
31. 31.407 × 402 =
32. 32.19 × 18 =
33. 33.82 × 84 =
34. 34.29 × 27 =
35. 35.194 × 195 =
36. 36.498 × 498 =
37. 37.291 × 295 =
38. 38.67 × 66 =
39. 39.23 × 24 =
40. 40.24 × 22 =

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