Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 672 · 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 × 404 =
2. 2.68 × 67 =
3. 3.508 × 501 =
4. 4.39 × 36 =
5. 5.194 × 199 =
6. 6.34 × 33 =
7. 7.54 × 54 =
8. 8.194 × 198 =
9. 9.302 × 303 =
10. 10.69 × 66 =
11. 11.43 × 43 =
12. 12.496 × 497 =
13. 13.597 × 594 =
14. 14.193 × 196 =
15. 15.52 × 54 =
16. 16.44 × 42 =
17. 17.87 × 89 =
18. 18.205 × 201 =
19. 19.53 × 51 =
20. 20.606 × 602 =
21. 21.303 × 304 =
22. 22.409 × 406 =
23. 23.87 × 89 =
24. 24.29 × 27 =
25. 25.507 × 501 =
26. 26.77 × 78 =
27. 27.502 × 509 =
28. 28.29 × 29 =
29. 29.56 × 57 =
30. 30.501 × 504 =
31. 31.36 × 39 =
32. 32.28 × 28 =
33. 33.79 × 77 =
34. 34.93 × 93 =
35. 35.291 × 294 =
36. 36.205 × 206 =
37. 37.598 × 598 =
38. 38.398 × 392 =
39. 39.497 × 492 =
40. 40.87 × 89 =

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