Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 224 · 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. 1.405 × 401 =
2. 2.507 × 508 =
3. 3.29 × 29 =
4. 4.406 × 406 =
5. 5.508 × 503 =
6. 6.295 × 296 =
7. 7.61 × 62 =
8. 8.606 × 601 =
9. 9.606 × 605 =
10. 10.72 × 74 =
11. 11.39 × 36 =
12. 12.492 × 499 =
13. 13.28 × 28 =
14. 14.306 × 302 =
15. 15.594 × 599 =
16. 16.61 × 64 =
17. 17.38 × 37 =
18. 18.53 × 52 =
19. 19.392 × 398 =
20. 20.496 × 498 =
21. 21.74 × 72 =
22. 22.196 × 194 =
23. 23.496 × 492 =
24. 24.78 × 77 =
25. 25.195 × 191 =
26. 26.44 × 43 =
27. 27.197 × 193 =
28. 28.64 × 63 =
29. 29.28 × 27 =
30. 30.305 × 304 =
31. 31.206 × 209 =
32. 32.395 × 394 =
33. 33.86 × 86 =
34. 34.68 × 69 =
35. 35.207 × 205 =
36. 36.51 × 51 =
37. 37.72 × 71 =
38. 38.199 × 195 =
39. 39.21 × 23 =
40. 40.599 × 594 =

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