Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 427 · 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. 1.209 × 202 =
2. 2.206 × 204 =
3. 3.305 × 307 =
4. 4.49 × 49 =
5. 5.206 × 203 =
6. 6.607 × 606 =
7. 7.504 × 503 =
8. 8.502 × 501 =
9. 9.37 × 38 =
10. 10.63 × 64 =
11. 11.22 × 23 =
12. 12.57 × 58 =
13. 13.604 × 602 =
14. 14.78 × 77 =
15. 15.198 × 199 =
16. 16.305 × 302 =
17. 17.34 × 33 =
18. 18.36 × 36 =
19. 19.209 × 201 =
20. 20.503 × 507 =
21. 21.207 × 209 =
22. 22.392 × 396 =
23. 23.398 × 398 =
24. 24.602 × 609 =
25. 25.57 × 58 =
26. 26.69 × 67 =
27. 27.491 × 498 =
28. 28.304 × 306 =
29. 29.395 × 396 =
30. 30.39 × 37 =
31. 31.69 × 69 =
32. 32.43 × 44 =
33. 33.18 × 19 =
34. 34.94 × 93 =
35. 35.597 × 596 =
36. 36.195 × 199 =
37. 37.497 × 491 =
38. 38.494 × 492 =
39. 39.23 × 21 =
40. 40.54 × 54 =

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