Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 100 · 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. 1.61 × 62 =
2. 2.34 × 33 =
3. 3.404 × 402 =
4. 4.76 × 79 =
5. 5.199 × 191 =
6. 6.302 × 309 =
7. 7.17 × 17 =
8. 8.62 × 62 =
9. 9.43 × 41 =
10. 10.46 × 46 =
11. 11.291 × 291 =
12. 12.501 × 506 =
13. 13.52 × 51 =
14. 14.28 × 26 =
15. 15.63 × 62 =
16. 16.89 × 89 =
17. 17.207 × 205 =
18. 18.291 × 298 =
19. 19.83 × 82 =
20. 20.503 × 504 =
21. 21.596 × 595 =
22. 22.306 × 301 =
23. 23.192 × 195 =
24. 24.492 × 497 =
25. 25.49 × 49 =
26. 26.196 × 193 =
27. 27.59 × 59 =
28. 28.402 × 403 =
29. 29.87 × 88 =
30. 30.305 × 307 =
31. 31.79 × 76 =
32. 32.47 × 48 =
33. 33.495 × 497 =
34. 34.69 × 66 =
35. 35.79 × 77 =
36. 36.83 × 81 =
37. 37.59 × 59 =
38. 38.19 × 19 =
39. 39.74 × 74 =
40. 40.296 × 299 =

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