Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 221 · 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. 1.69 × 68 =
2. 2.18 × 19 =
3. 3.92 × 92 =
4. 4.197 × 193 =
5. 5.57 × 59 =
6. 6.299 × 298 =
7. 7.87 × 88 =
8. 8.291 × 296 =
9. 9.296 × 298 =
10. 10.295 × 291 =
11. 11.206 × 206 =
12. 12.503 × 501 =
13. 13.22 × 23 =
14. 14.192 × 191 =
15. 15.78 × 79 =
16. 16.54 × 54 =
17. 17.23 × 24 =
18. 18.507 × 508 =
19. 19.37 × 37 =
20. 20.21 × 22 =
21. 21.32 × 34 =
22. 22.47 × 48 =
23. 23.504 × 508 =
24. 24.89 × 89 =
25. 25.57 × 58 =
26. 26.495 × 492 =
27. 27.56 × 59 =
28. 28.69 × 69 =
29. 29.34 × 31 =
30. 30.598 × 591 =
31. 31.77 × 78 =
32. 32.93 × 93 =
33. 33.191 × 198 =
34. 34.81 × 82 =
35. 35.305 × 302 =
36. 36.608 × 608 =
37. 37.19 × 17 =
38. 38.396 × 399 =
39. 39.87 × 88 =
40. 40.206 × 204 =

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