Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 371 · 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. 1.53 × 53 =
2. 2.594 × 598 =
3. 3.293 × 299 =
4. 4.41 × 43 =
5. 5.83 × 83 =
6. 6.37 × 39 =
7. 7.38 × 38 =
8. 8.21 × 22 =
9. 9.303 × 302 =
10. 10.38 × 39 =
11. 11.53 × 54 =
12. 12.31 × 33 =
13. 13.598 × 594 =
14. 14.74 × 73 =
15. 15.83 × 82 =
16. 16.69 × 68 =
17. 17.83 × 83 =
18. 18.31 × 34 =
19. 19.291 × 297 =
20. 20.49 × 49 =
21. 21.591 × 594 =
22. 22.61 × 62 =
23. 23.87 × 86 =
24. 24.306 × 307 =
25. 25.44 × 44 =
26. 26.401 × 403 =
27. 27.88 × 86 =
28. 28.72 × 72 =
29. 29.66 × 69 =
30. 30.68 × 68 =
31. 31.56 × 58 =
32. 32.497 × 494 =
33. 33.508 × 501 =
34. 34.202 × 205 =
35. 35.193 × 193 =
36. 36.19 × 17 =
37. 37.81 × 81 =
38. 38.89 × 88 =
39. 39.403 × 402 =
40. 40.603 × 605 =

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