Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 368 · 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. 1.397 × 397 =
2. 2.405 × 402 =
3. 3.74 × 71 =
4. 4.66 × 67 =
5. 5.208 × 202 =
6. 6.598 × 594 =
7. 7.49 × 49 =
8. 8.38 × 38 =
9. 9.603 × 603 =
10. 10.307 × 305 =
11. 11.602 × 609 =
12. 12.394 × 396 =
13. 13.195 × 191 =
14. 14.24 × 21 =
15. 15.41 × 42 =
16. 16.199 × 198 =
17. 17.87 × 89 =
18. 18.76 × 79 =
19. 19.204 × 205 =
20. 20.595 × 593 =
21. 21.292 × 294 =
22. 22.16 × 18 =
23. 23.499 × 496 =
24. 24.33 × 31 =
25. 25.78 × 76 =
26. 26.68 × 69 =
27. 27.53 × 54 =
28. 28.602 × 607 =
29. 29.197 × 194 =
30. 30.198 × 193 =
31. 31.31 × 33 =
32. 32.37 × 39 =
33. 33.33 × 33 =
34. 34.22 × 22 =
35. 35.609 × 608 =
36. 36.601 × 607 =
37. 37.62 × 63 =
38. 38.509 × 508 =
39. 39.37 × 39 =
40. 40.31 × 34 =

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