Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 865 · 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. 1.47 × 48 =
2. 2.502 × 501 =
3. 3.196 × 193 =
4. 4.509 × 508 =
5. 5.62 × 63 =
6. 6.82 × 82 =
7. 7.51 × 51 =
8. 8.202 × 202 =
9. 9.16 × 19 =
10. 10.46 × 46 =
11. 11.74 × 74 =
12. 12.507 × 507 =
13. 13.492 × 493 =
14. 14.406 × 407 =
15. 15.63 × 63 =
16. 16.21 × 24 =
17. 17.397 × 397 =
18. 18.601 × 601 =
19. 19.498 × 493 =
20. 20.47 × 47 =
21. 21.191 × 194 =
22. 22.202 × 204 =
23. 23.499 × 498 =
24. 24.299 × 297 =
25. 25.202 × 209 =
26. 26.296 × 292 =
27. 27.62 × 63 =
28. 28.36 × 37 =
29. 29.591 × 597 =
30. 30.42 × 43 =
31. 31.64 × 61 =
32. 32.299 × 293 =
33. 33.94 × 92 =
34. 34.207 × 202 =
35. 35.502 × 505 =
36. 36.404 × 403 =
37. 37.28 × 28 =
38. 38.198 × 192 =
39. 39.309 × 309 =
40. 40.92 × 92 =

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