Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 554 · 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. 1.89 × 89 =
2. 2.209 × 201 =
3. 3.593 × 592 =
4. 4.29 × 28 =
5. 5.91 × 92 =
6. 6.67 × 68 =
7. 7.293 × 296 =
8. 8.49 × 49 =
9. 9.493 × 493 =
10. 10.64 × 62 =
11. 11.598 × 597 =
12. 12.29 × 27 =
13. 13.32 × 33 =
14. 14.495 × 492 =
15. 15.27 × 29 =
16. 16.44 × 41 =
17. 17.18 × 19 =
18. 18.499 × 496 =
19. 19.49 × 47 =
20. 20.88 × 89 =
21. 21.407 × 401 =
22. 22.19 × 16 =
23. 23.77 × 78 =
24. 24.46 × 47 =
25. 25.205 × 205 =
26. 26.497 × 496 =
27. 27.507 × 503 =
28. 28.42 × 41 =
29. 29.23 × 24 =
30. 30.304 × 309 =
31. 31.41 × 42 =
32. 32.31 × 34 =
33. 33.36 × 39 =
34. 34.407 × 409 =
35. 35.23 × 22 =
36. 36.398 × 396 =
37. 37.58 × 57 =
38. 38.87 × 87 =
39. 39.71 × 73 =
40. 40.603 × 604 =

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