Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 111 · 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. 1.39 × 39 =
2. 2.91 × 93 =
3. 3.67 × 67 =
4. 4.51 × 54 =
5. 5.38 × 37 =
6. 6.493 × 493 =
7. 7.291 × 296 =
8. 8.58 × 58 =
9. 9.202 × 206 =
10. 10.508 × 505 =
11. 11.599 × 599 =
12. 12.57 × 56 =
13. 13.301 × 307 =
14. 14.509 × 504 =
15. 15.308 × 309 =
16. 16.41 × 42 =
17. 17.395 × 393 =
18. 18.28 × 28 =
19. 19.304 × 305 =
20. 20.599 × 596 =
21. 21.91 × 91 =
22. 22.94 × 91 =
23. 23.199 × 191 =
24. 24.602 × 603 =
25. 25.51 × 52 =
26. 26.39 × 39 =
27. 27.307 × 303 =
28. 28.71 × 72 =
29. 29.31 × 34 =
30. 30.54 × 51 =
31. 31.191 × 195 =
32. 32.67 × 67 =
33. 33.407 × 401 =
34. 34.398 × 394 =
35. 35.42 × 41 =
36. 36.603 × 606 =
37. 37.299 × 292 =
38. 38.203 × 201 =
39. 39.291 × 291 =
40. 40.37 × 39 =

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