Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 414 · 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. 1.397 × 391 =
2. 2.505 × 509 =
3. 3.62 × 62 =
4. 4.208 × 201 =
5. 5.63 × 63 =
6. 6.88 × 89 =
7. 7.83 × 81 =
8. 8.397 × 396 =
9. 9.31 × 31 =
10. 10.26 × 26 =
11. 11.89 × 86 =
12. 12.396 × 391 =
13. 13.74 × 71 =
14. 14.49 × 49 =
15. 15.73 × 71 =
16. 16.298 × 299 =
17. 17.396 × 399 =
18. 18.94 × 91 =
19. 19.503 × 507 =
20. 20.499 × 494 =
21. 21.67 × 68 =
22. 22.34 × 31 =
23. 23.27 × 27 =
24. 24.63 × 64 =
25. 25.398 × 391 =
26. 26.201 × 207 =
27. 27.292 × 299 =
28. 28.599 × 596 =
29. 29.501 × 509 =
30. 30.191 × 199 =
31. 31.79 × 77 =
32. 32.598 × 599 =
33. 33.291 × 296 =
34. 34.84 × 83 =
35. 35.59 × 59 =
36. 36.308 × 305 =
37. 37.391 × 393 =
38. 38.89 × 88 =
39. 39.299 × 295 =
40. 40.505 × 506 =

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