Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 901 · 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. 1.83 × 83 =
2. 2.59 × 59 =
3. 3.403 × 404 =
4. 4.509 × 502 =
5. 5.19 × 16 =
6. 6.59 × 57 =
7. 7.64 × 61 =
8. 8.208 × 205 =
9. 9.294 × 297 =
10. 10.92 × 91 =
11. 11.299 × 293 =
12. 12.398 × 395 =
13. 13.499 × 493 =
14. 14.27 × 26 =
15. 15.83 × 83 =
16. 16.501 × 502 =
17. 17.17 × 19 =
18. 18.29 × 26 =
19. 19.77 × 76 =
20. 20.89 × 87 =
21. 21.87 × 88 =
22. 22.402 × 404 =
23. 23.505 × 505 =
24. 24.76 × 78 =
25. 25.79 × 77 =
26. 26.492 × 493 =
27. 27.503 × 503 =
28. 28.408 × 404 =
29. 29.18 × 16 =
30. 30.89 × 89 =
31. 31.297 × 295 =
32. 32.595 × 593 =
33. 33.61 × 63 =
34. 34.53 × 52 =
35. 35.58 × 56 =
36. 36.48 × 46 =
37. 37.46 × 49 =
38. 38.39 × 37 =
39. 39.81 × 84 =
40. 40.28 × 27 =

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