Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 315 · 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 × 66 =
2. 2.47 × 48 =
3. 3.82 × 83 =
4. 4.48 × 47 =
5. 5.505 × 506 =
6. 6.493 × 496 =
7. 7.56 × 59 =
8. 8.33 × 31 =
9. 9.19 × 19 =
10. 10.54 × 54 =
11. 11.202 × 209 =
12. 12.37 × 39 =
13. 13.57 × 59 =
14. 14.39 × 38 =
15. 15.86 × 88 =
16. 16.27 × 27 =
17. 17.19 × 16 =
18. 18.391 × 399 =
19. 19.32 × 34 =
20. 20.56 × 58 =
21. 21.209 × 207 =
22. 22.406 × 404 =
23. 23.398 × 394 =
24. 24.198 × 198 =
25. 25.69 × 66 =
26. 26.493 × 498 =
27. 27.294 × 293 =
28. 28.79 × 79 =
29. 29.598 × 598 =
30. 30.202 × 205 =
31. 31.42 × 42 =
32. 32.36 × 36 =
33. 33.402 × 409 =
34. 34.304 × 305 =
35. 35.202 × 201 =
36. 36.393 × 393 =
37. 37.64 × 61 =
38. 38.198 × 195 =
39. 39.503 × 505 =
40. 40.38 × 38 =

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