Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 55 · 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. 1.81 × 83 =
2. 2.67 × 67 =
3. 3.397 × 396 =
4. 4.294 × 299 =
5. 5.598 × 599 =
6. 6.26 × 26 =
7. 7.72 × 71 =
8. 8.406 × 409 =
9. 9.196 × 193 =
10. 10.503 × 501 =
11. 11.293 × 293 =
12. 12.195 × 195 =
13. 13.602 × 609 =
14. 14.194 × 194 =
15. 15.298 × 295 =
16. 16.28 × 28 =
17. 17.77 × 79 =
18. 18.603 × 603 =
19. 19.208 × 204 =
20. 20.205 × 205 =
21. 21.392 × 395 =
22. 22.202 × 201 =
23. 23.306 × 302 =
24. 24.51 × 53 =
25. 25.595 × 596 =
26. 26.291 × 296 =
27. 27.31 × 31 =
28. 28.494 × 495 =
29. 29.24 × 24 =
30. 30.407 × 406 =
31. 31.396 × 397 =
32. 32.409 × 404 =
33. 33.29 × 27 =
34. 34.294 × 292 =
35. 35.67 × 66 =
36. 36.398 × 391 =
37. 37.19 × 16 =
38. 38.17 × 18 =
39. 39.607 × 606 =
40. 40.58 × 58 =

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