Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 508 · 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 × 395 =
2. 2.491 × 497 =
3. 3.505 × 507 =
4. 4.506 × 503 =
5. 5.198 × 194 =
6. 6.39 × 39 =
7. 7.41 × 41 =
8. 8.303 × 304 =
9. 9.402 × 403 =
10. 10.198 × 191 =
11. 11.21 × 23 =
12. 12.609 × 608 =
13. 13.298 × 293 =
14. 14.605 × 605 =
15. 15.207 × 208 =
16. 16.208 × 208 =
17. 17.68 × 67 =
18. 18.193 × 191 =
19. 19.66 × 67 =
20. 20.291 × 297 =
21. 21.209 × 203 =
22. 22.301 × 306 =
23. 23.204 × 209 =
24. 24.302 × 302 =
25. 25.39 × 39 =
26. 26.34 × 31 =
27. 27.209 × 204 =
28. 28.206 × 204 =
29. 29.604 × 608 =
30. 30.28 × 29 =
31. 31.405 × 409 =
32. 32.494 × 497 =
33. 33.508 × 501 =
34. 34.31 × 31 =
35. 35.298 × 297 =
36. 36.94 × 92 =
37. 37.191 × 194 =
38. 38.59 × 57 =
39. 39.204 × 206 =
40. 40.82 × 82 =

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