Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 712 · 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. 1.296 × 292 =
2. 2.508 × 506 =
3. 3.306 × 304 =
4. 4.28 × 29 =
5. 5.23 × 23 =
6. 6.51 × 54 =
7. 7.198 × 194 =
8. 8.92 × 93 =
9. 9.292 × 296 =
10. 10.27 × 26 =
11. 11.209 × 202 =
12. 12.597 × 598 =
13. 13.402 × 407 =
14. 14.62 × 63 =
15. 15.93 × 91 =
16. 16.69 × 67 =
17. 17.86 × 86 =
18. 18.303 × 306 =
19. 19.56 × 59 =
20. 20.392 × 392 =
21. 21.44 × 42 =
22. 22.24 × 22 =
23. 23.409 × 409 =
24. 24.88 × 87 =
25. 25.59 × 59 =
26. 26.42 × 41 =
27. 27.72 × 71 =
28. 28.406 × 403 =
29. 29.493 × 492 =
30. 30.307 × 308 =
31. 31.608 × 609 =
32. 32.79 × 77 =
33. 33.77 × 77 =
34. 34.37 × 39 =
35. 35.42 × 43 =
36. 36.393 × 393 =
37. 37.49 × 48 =
38. 38.393 × 396 =
39. 39.201 × 202 =
40. 40.49 × 46 =

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