Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 215 · 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. 1.93 × 92 =
2. 2.607 × 608 =
3. 3.76 × 77 =
4. 4.296 × 297 =
5. 5.28 × 29 =
6. 6.605 × 608 =
7. 7.39 × 38 =
8. 8.51 × 54 =
9. 9.78 × 78 =
10. 10.89 × 86 =
11. 11.36 × 36 =
12. 12.87 × 89 =
13. 13.94 × 94 =
14. 14.505 × 508 =
15. 15.68 × 66 =
16. 16.605 × 608 =
17. 17.17 × 19 =
18. 18.93 × 93 =
19. 19.202 × 203 =
20. 20.403 × 403 =
21. 21.501 × 505 =
22. 22.33 × 33 =
23. 23.408 × 401 =
24. 24.193 × 194 =
25. 25.18 × 17 =
26. 26.32 × 32 =
27. 27.492 × 498 =
28. 28.603 × 602 =
29. 29.497 × 492 =
30. 30.32 × 34 =
31. 31.49 × 46 =
32. 32.205 × 203 =
33. 33.41 × 42 =
34. 34.59 × 59 =
35. 35.19 × 17 =
36. 36.593 × 592 =
37. 37.599 × 598 =
38. 38.208 × 208 =
39. 39.92 × 92 =
40. 40.53 × 54 =

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