Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 437 · 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. 1.493 × 492 =
2. 2.604 × 604 =
3. 3.196 × 197 =
4. 4.73 × 74 =
5. 5.502 × 508 =
6. 6.39 × 37 =
7. 7.596 × 598 =
8. 8.57 × 57 =
9. 9.596 × 593 =
10. 10.41 × 42 =
11. 11.34 × 34 =
12. 12.62 × 64 =
13. 13.301 × 302 =
14. 14.502 × 506 =
15. 15.93 × 93 =
16. 16.19 × 18 =
17. 17.407 × 403 =
18. 18.206 × 201 =
19. 19.23 × 23 =
20. 20.26 × 28 =
21. 21.506 × 504 =
22. 22.491 × 498 =
23. 23.89 × 88 =
24. 24.194 × 193 =
25. 25.36 × 36 =
26. 26.68 × 67 =
27. 27.507 × 503 =
28. 28.33 × 34 =
29. 29.59 × 58 =
30. 30.401 × 403 =
31. 31.505 × 503 =
32. 32.205 × 202 =
33. 33.23 × 21 =
34. 34.506 × 505 =
35. 35.67 × 69 =
36. 36.33 × 31 =
37. 37.405 × 409 =
38. 38.493 × 497 =
39. 39.404 × 403 =
40. 40.66 × 66 =

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