Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 82 · 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. 1.93 × 92 =
2. 2.596 × 596 =
3. 3.491 × 491 =
4. 4.47 × 48 =
5. 5.61 × 63 =
6. 6.19 × 18 =
7. 7.17 × 18 =
8. 8.94 × 91 =
9. 9.49 × 47 =
10. 10.302 × 308 =
11. 11.405 × 402 =
12. 12.73 × 74 =
13. 13.301 × 309 =
14. 14.398 × 394 =
15. 15.41 × 41 =
16. 16.31 × 33 =
17. 17.18 × 18 =
18. 18.394 × 392 =
19. 19.54 × 53 =
20. 20.77 × 79 =
21. 21.27 × 29 =
22. 22.204 × 203 =
23. 23.499 × 492 =
24. 24.491 × 498 =
25. 25.51 × 52 =
26. 26.309 × 305 =
27. 27.47 × 46 =
28. 28.408 × 406 =
29. 29.595 × 591 =
30. 30.84 × 81 =
31. 31.21 × 24 =
32. 32.494 × 497 =
33. 33.91 × 92 =
34. 34.302 × 303 =
35. 35.502 × 501 =
36. 36.601 × 603 =
37. 37.43 × 43 =
38. 38.91 × 91 =
39. 39.82 × 81 =
40. 40.32 × 33 =

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