Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 581 · 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. 1.66 × 68 =
2. 2.57 × 59 =
3. 3.197 × 198 =
4. 4.19 × 16 =
5. 5.496 × 493 =
6. 6.88 × 89 =
7. 7.408 × 409 =
8. 8.73 × 71 =
9. 9.44 × 43 =
10. 10.37 × 38 =
11. 11.37 × 39 =
12. 12.193 × 195 =
13. 13.196 × 199 =
14. 14.78 × 79 =
15. 15.504 × 501 =
16. 16.493 × 494 =
17. 17.494 × 495 =
18. 18.76 × 79 =
19. 19.592 × 594 =
20. 20.21 × 24 =
21. 21.33 × 31 =
22. 22.93 × 92 =
23. 23.34 × 32 =
24. 24.398 × 392 =
25. 25.494 × 494 =
26. 26.19 × 17 =
27. 27.36 × 39 =
28. 28.39 × 39 =
29. 29.59 × 56 =
30. 30.595 × 595 =
31. 31.34 × 34 =
32. 32.48 × 47 =
33. 33.27 × 26 =
34. 34.56 × 58 =
35. 35.22 × 21 =
36. 36.89 × 88 =
37. 37.294 × 291 =
38. 38.399 × 391 =
39. 39.405 × 401 =
40. 40.501 × 506 =

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