Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 43 · 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. 1.607 × 602 =
2. 2.79 × 79 =
3. 3.67 × 69 =
4. 4.605 × 601 =
5. 5.81 × 83 =
6. 6.196 × 199 =
7. 7.307 × 306 =
8. 8.18 × 19 =
9. 9.298 × 298 =
10. 10.89 × 87 =
11. 11.502 × 502 =
12. 12.22 × 22 =
13. 13.593 × 596 =
14. 14.609 × 607 =
15. 15.502 × 502 =
16. 16.89 × 86 =
17. 17.94 × 94 =
18. 18.609 × 602 =
19. 19.407 × 401 =
20. 20.506 × 502 =
21. 21.63 × 62 =
22. 22.301 × 307 =
23. 23.83 × 81 =
24. 24.67 × 68 =
25. 25.61 × 62 =
26. 26.57 × 58 =
27. 27.397 × 393 =
28. 28.94 × 91 =
29. 29.83 × 81 =
30. 30.32 × 32 =
31. 31.594 × 598 =
32. 32.41 × 43 =
33. 33.497 × 496 =
34. 34.47 × 49 =
35. 35.77 × 76 =
36. 36.71 × 72 =
37. 37.68 × 68 =
38. 38.72 × 73 =
39. 39.49 × 49 =
40. 40.86 × 87 =

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