Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 725 · 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. 1.72 × 72 =
2. 2.501 × 504 =
3. 3.398 × 392 =
4. 4.19 × 16 =
5. 5.93 × 91 =
6. 6.403 × 408 =
7. 7.508 × 508 =
8. 8.196 × 195 =
9. 9.209 × 203 =
10. 10.43 × 41 =
11. 11.196 × 196 =
12. 12.91 × 92 =
13. 13.198 × 195 =
14. 14.296 × 295 =
15. 15.198 × 191 =
16. 16.63 × 63 =
17. 17.591 × 596 =
18. 18.599 × 594 =
19. 19.38 × 37 =
20. 20.34 × 34 =
21. 21.606 × 609 =
22. 22.31 × 33 =
23. 23.196 × 191 =
24. 24.16 × 18 =
25. 25.47 × 47 =
26. 26.34 × 31 =
27. 27.19 × 16 =
28. 28.23 × 24 =
29. 29.86 × 89 =
30. 30.79 × 79 =
31. 31.16 × 16 =
32. 32.36 × 38 =
33. 33.53 × 52 =
34. 34.601 × 601 =
35. 35.392 × 393 =
36. 36.507 × 502 =
37. 37.49 × 46 =
38. 38.19 × 19 =
39. 39.72 × 71 =
40. 40.79 × 77 =

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