Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 65 · 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. 1.401 × 403 =
2. 2.591 × 595 =
3. 3.297 × 292 =
4. 4.49 × 47 =
5. 5.86 × 86 =
6. 6.597 × 598 =
7. 7.29 × 29 =
8. 8.48 × 48 =
9. 9.395 × 392 =
10. 10.19 × 19 =
11. 11.492 × 491 =
12. 12.195 × 193 =
13. 13.505 × 504 =
14. 14.598 × 595 =
15. 15.203 × 207 =
16. 16.87 × 87 =
17. 17.399 × 398 =
18. 18.595 × 598 =
19. 19.495 × 495 =
20. 20.64 × 63 =
21. 21.64 × 62 =
22. 22.301 × 308 =
23. 23.53 × 53 =
24. 24.407 × 405 =
25. 25.64 × 63 =
26. 26.69 × 66 =
27. 27.605 × 604 =
28. 28.606 × 606 =
29. 29.397 × 397 =
30. 30.507 × 503 =
31. 31.51 × 53 =
32. 32.402 × 405 =
33. 33.403 × 405 =
34. 34.597 × 599 =
35. 35.503 × 503 =
36. 36.17 × 18 =
37. 37.29 × 26 =
38. 38.402 × 405 =
39. 39.29 × 26 =
40. 40.69 × 68 =

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