Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 42 · 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. 1.42 × 42 =
2. 2.493 × 497 =
3. 3.398 × 399 =
4. 4.51 × 52 =
5. 5.298 × 299 =
6. 6.77 × 78 =
7. 7.294 × 296 =
8. 8.23 × 22 =
9. 9.295 × 297 =
10. 10.494 × 493 =
11. 11.297 × 299 =
12. 12.76 × 76 =
13. 13.27 × 28 =
14. 14.591 × 599 =
15. 15.58 × 58 =
16. 16.194 × 195 =
17. 17.492 × 495 =
18. 18.77 × 76 =
19. 19.305 × 302 =
20. 20.66 × 69 =
21. 21.598 × 593 =
22. 22.597 × 591 =
23. 23.69 × 69 =
24. 24.295 × 293 =
25. 25.51 × 53 =
26. 26.52 × 51 =
27. 27.297 × 295 =
28. 28.403 × 401 =
29. 29.68 × 68 =
30. 30.606 × 605 =
31. 31.599 × 595 =
32. 32.593 × 598 =
33. 33.59 × 57 =
34. 34.77 × 78 =
35. 35.409 × 403 =
36. 36.19 × 17 =
37. 37.303 × 308 =
38. 38.67 × 67 =
39. 39.46 × 46 =
40. 40.592 × 597 =

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