Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 664 · 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. 1.302 × 302 =
2. 2.87 × 89 =
3. 3.79 × 76 =
4. 4.208 × 206 =
5. 5.39 × 37 =
6. 6.29 × 26 =
7. 7.79 × 79 =
8. 8.492 × 496 =
9. 9.92 × 94 =
10. 10.53 × 53 =
11. 11.34 × 32 =
12. 12.596 × 599 =
13. 13.309 × 307 =
14. 14.71 × 72 =
15. 15.597 × 593 =
16. 16.493 × 498 =
17. 17.78 × 78 =
18. 18.399 × 392 =
19. 19.291 × 298 =
20. 20.94 × 91 =
21. 21.22 × 21 =
22. 22.601 × 603 =
23. 23.604 × 602 =
24. 24.18 × 18 =
25. 25.598 × 598 =
26. 26.74 × 71 =
27. 27.34 × 31 =
28. 28.392 × 396 =
29. 29.91 × 92 =
30. 30.41 × 41 =
31. 31.192 × 198 =
32. 32.198 × 198 =
33. 33.196 × 194 =
34. 34.29 × 28 =
35. 35.48 × 49 =
36. 36.608 × 606 =
37. 37.22 × 22 =
38. 38.19 × 18 =
39. 39.22 × 21 =
40. 40.309 × 307 =

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