Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 838 · 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. 1.297 × 296 =
2. 2.499 × 495 =
3. 3.293 × 299 =
4. 4.63 × 63 =
5. 5.17 × 19 =
6. 6.605 × 602 =
7. 7.76 × 76 =
8. 8.298 × 297 =
9. 9.304 × 307 =
10. 10.26 × 29 =
11. 11.24 × 24 =
12. 12.54 × 52 =
13. 13.81 × 84 =
14. 14.409 × 401 =
15. 15.504 × 505 =
16. 16.92 × 94 =
17. 17.29 × 26 =
18. 18.502 × 508 =
19. 19.86 × 89 =
20. 20.24 × 22 =
21. 21.409 × 404 =
22. 22.16 × 17 =
23. 23.93 × 91 =
24. 24.27 × 28 =
25. 25.201 × 202 =
26. 26.18 × 17 =
27. 27.62 × 63 =
28. 28.53 × 51 =
29. 29.77 × 76 =
30. 30.77 × 78 =
31. 31.73 × 73 =
32. 32.86 × 86 =
33. 33.603 × 601 =
34. 34.199 × 198 =
35. 35.302 × 302 =
36. 36.405 × 409 =
37. 37.32 × 32 =
38. 38.39 × 36 =
39. 39.301 × 302 =
40. 40.66 × 66 =

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