Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 753 · 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. 1.308 × 306 =
2. 2.305 × 304 =
3. 3.73 × 72 =
4. 4.49 × 46 =
5. 5.16 × 16 =
6. 6.197 × 199 =
7. 7.603 × 607 =
8. 8.61 × 61 =
9. 9.24 × 22 =
10. 10.508 × 506 =
11. 11.44 × 44 =
12. 12.31 × 31 =
13. 13.199 × 195 =
14. 14.29 × 29 =
15. 15.496 × 497 =
16. 16.72 × 73 =
17. 17.599 × 596 =
18. 18.28 × 26 =
19. 19.609 × 609 =
20. 20.38 × 37 =
21. 21.201 × 209 =
22. 22.49 × 49 =
23. 23.399 × 391 =
24. 24.299 × 291 =
25. 25.506 × 505 =
26. 26.409 × 405 =
27. 27.19 × 18 =
28. 28.501 × 503 =
29. 29.599 × 598 =
30. 30.604 × 608 =
31. 31.604 × 604 =
32. 32.398 × 398 =
33. 33.18 × 19 =
34. 34.51 × 51 =
35. 35.81 × 82 =
36. 36.209 × 204 =
37. 37.605 × 602 =
38. 38.505 × 507 =
39. 39.409 × 402 =
40. 40.27 × 26 =

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