Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 128 · 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. 1.57 × 58 =
2. 2.299 × 299 =
3. 3.593 × 597 =
4. 4.41 × 41 =
5. 5.397 × 398 =
6. 6.396 × 391 =
7. 7.76 × 79 =
8. 8.73 × 74 =
9. 9.206 × 206 =
10. 10.208 × 203 =
11. 11.37 × 37 =
12. 12.24 × 22 =
13. 13.33 × 31 =
14. 14.407 × 402 =
15. 15.56 × 56 =
16. 16.39 × 38 =
17. 17.403 × 409 =
18. 18.303 × 307 =
19. 19.28 × 29 =
20. 20.48 × 49 =
21. 21.204 × 206 =
22. 22.27 × 28 =
23. 23.393 × 392 =
24. 24.48 × 46 =
25. 25.601 × 603 =
26. 26.201 × 203 =
27. 27.198 × 192 =
28. 28.406 × 406 =
29. 29.91 × 93 =
30. 30.18 × 17 =
31. 31.199 × 199 =
32. 32.39 × 38 =
33. 33.69 × 66 =
34. 34.63 × 62 =
35. 35.73 × 72 =
36. 36.56 × 56 =
37. 37.32 × 33 =
38. 38.16 × 17 =
39. 39.73 × 71 =
40. 40.492 × 498 =

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