Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 746 · 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. 1.68 × 68 =
2. 2.81 × 81 =
3. 3.93 × 92 =
4. 4.31 × 33 =
5. 5.33 × 33 =
6. 6.606 × 606 =
7. 7.394 × 394 =
8. 8.392 × 391 =
9. 9.56 × 57 =
10. 10.78 × 76 =
11. 11.51 × 52 =
12. 12.79 × 76 =
13. 13.26 × 29 =
14. 14.394 × 394 =
15. 15.37 × 37 =
16. 16.56 × 56 =
17. 17.89 × 88 =
18. 18.64 × 62 =
19. 19.297 × 296 =
20. 20.92 × 92 =
21. 21.94 × 93 =
22. 22.598 × 593 =
23. 23.398 × 392 =
24. 24.603 × 605 =
25. 25.16 × 16 =
26. 26.496 × 494 =
27. 27.295 × 291 =
28. 28.403 × 407 =
29. 29.26 × 27 =
30. 30.604 × 609 =
31. 31.36 × 36 =
32. 32.47 × 47 =
33. 33.606 × 607 =
34. 34.53 × 52 =
35. 35.36 × 36 =
36. 36.62 × 62 =
37. 37.47 × 47 =
38. 38.193 × 193 =
39. 39.39 × 38 =
40. 40.67 × 69 =

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