Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 73 · 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. 1.202 × 207 =
2. 2.407 × 403 =
3. 3.291 × 293 =
4. 4.49 × 46 =
5. 5.22 × 21 =
6. 6.26 × 28 =
7. 7.503 × 509 =
8. 8.32 × 33 =
9. 9.46 × 49 =
10. 10.307 × 308 =
11. 11.72 × 73 =
12. 12.497 × 492 =
13. 13.405 × 405 =
14. 14.76 × 77 =
15. 15.307 × 309 =
16. 16.603 × 607 =
17. 17.29 × 26 =
18. 18.28 × 28 =
19. 19.88 × 86 =
20. 20.304 × 303 =
21. 21.58 × 58 =
22. 22.31 × 34 =
23. 23.296 × 293 =
24. 24.496 × 491 =
25. 25.32 × 32 =
26. 26.27 × 27 =
27. 27.298 × 299 =
28. 28.33 × 31 =
29. 29.202 × 205 =
30. 30.402 × 402 =
31. 31.393 × 393 =
32. 32.18 × 19 =
33. 33.31 × 32 =
34. 34.202 × 204 =
35. 35.197 × 198 =
36. 36.498 × 498 =
37. 37.19 × 16 =
38. 38.407 × 406 =
39. 39.607 × 604 =
40. 40.198 × 195 =

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