Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 833 · 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. 1.398 × 391 =
2. 2.39 × 38 =
3. 3.603 × 602 =
4. 4.91 × 94 =
5. 5.49 × 48 =
6. 6.92 × 93 =
7. 7.72 × 74 =
8. 8.302 × 304 =
9. 9.499 × 498 =
10. 10.44 × 44 =
11. 11.81 × 84 =
12. 12.53 × 51 =
13. 13.52 × 54 =
14. 14.71 × 71 =
15. 15.51 × 51 =
16. 16.403 × 405 =
17. 17.41 × 41 =
18. 18.42 × 43 =
19. 19.194 × 196 =
20. 20.197 × 198 =
21. 21.91 × 94 =
22. 22.408 × 401 =
23. 23.197 × 191 =
24. 24.491 × 497 =
25. 25.498 × 496 =
26. 26.205 × 202 =
27. 27.606 × 605 =
28. 28.47 × 47 =
29. 29.28 × 27 =
30. 30.301 × 301 =
31. 31.609 × 608 =
32. 32.397 × 392 =
33. 33.87 × 88 =
34. 34.89 × 87 =
35. 35.293 × 295 =
36. 36.34 × 32 =
37. 37.397 × 397 =
38. 38.23 × 23 =
39. 39.297 × 297 =
40. 40.22 × 21 =

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