Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 878 · 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. 2.397 × 396 =
3. 3.69 × 67 =
4. 4.64 × 61 =
5. 5.62 × 61 =
6. 6.191 × 198 =
7. 7.193 × 199 =
8. 8.19 × 19 =
9. 9.83 × 81 =
10. 10.72 × 73 =
11. 11.502 × 508 =
12. 12.66 × 67 =
13. 13.606 × 609 =
14. 14.68 × 69 =
15. 15.208 × 205 =
16. 16.409 × 401 =
17. 17.51 × 51 =
18. 18.21 × 23 =
19. 19.403 × 404 =
20. 20.594 × 593 =
21. 21.297 × 296 =
22. 22.193 × 195 =
23. 23.76 × 79 =
24. 24.297 × 293 =
25. 25.79 × 78 =
26. 26.303 × 307 =
27. 27.292 × 296 =
28. 28.201 × 207 =
29. 29.495 × 497 =
30. 30.295 × 295 =
31. 31.203 × 204 =
32. 32.609 × 605 =
33. 33.399 × 399 =
34. 34.191 × 198 =
35. 35.209 × 204 =
36. 36.52 × 53 =
37. 37.19 × 18 =
38. 38.507 × 508 =
39. 39.24 × 24 =
40. 40.42 × 43 =

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