Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 456 · 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. 1.31 × 31 =
2. 2.58 × 59 =
3. 3.61 × 63 =
4. 4.87 × 89 =
5. 5.43 × 41 =
6. 6.597 × 591 =
7. 7.49 × 46 =
8. 8.302 × 301 =
9. 9.46 × 49 =
10. 10.202 × 209 =
11. 11.208 × 209 =
12. 12.497 × 499 =
13. 13.88 × 89 =
14. 14.607 × 607 =
15. 15.73 × 72 =
16. 16.392 × 398 =
17. 17.84 × 82 =
18. 18.26 × 29 =
19. 19.305 × 301 =
20. 20.599 × 596 =
21. 21.39 × 36 =
22. 22.37 × 36 =
23. 23.405 × 404 =
24. 24.404 × 402 =
25. 25.74 × 72 =
26. 26.599 × 592 =
27. 27.89 × 89 =
28. 28.198 × 199 =
29. 29.501 × 504 =
30. 30.39 × 36 =
31. 31.409 × 405 =
32. 32.502 × 506 =
33. 33.54 × 53 =
34. 34.17 × 19 =
35. 35.291 × 291 =
36. 36.403 × 407 =
37. 37.51 × 54 =
38. 38.87 × 89 =
39. 39.24 × 24 =
40. 40.87 × 89 =

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