Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 438 · 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. 1.604 × 606 =
2. 2.53 × 54 =
3. 3.28 × 27 =
4. 4.94 × 93 =
5. 5.36 × 37 =
6. 6.198 × 192 =
7. 7.91 × 93 =
8. 8.494 × 499 =
9. 9.403 × 402 =
10. 10.201 × 201 =
11. 11.34 × 31 =
12. 12.82 × 84 =
13. 13.21 × 21 =
14. 14.34 × 34 =
15. 15.392 × 397 =
16. 16.308 × 309 =
17. 17.493 × 498 =
18. 18.507 × 507 =
19. 19.33 × 31 =
20. 20.491 × 492 =
21. 21.496 × 499 =
22. 22.33 × 33 =
23. 23.21 × 21 =
24. 24.42 × 41 =
25. 25.19 × 16 =
26. 26.301 × 308 =
27. 27.76 × 76 =
28. 28.22 × 21 =
29. 29.79 × 79 =
30. 30.82 × 83 =
31. 31.77 × 76 =
32. 32.79 × 77 =
33. 33.39 × 36 =
34. 34.298 × 295 =
35. 35.599 × 592 =
36. 36.19 × 18 =
37. 37.82 × 81 =
38. 38.207 × 209 =
39. 39.205 × 207 =
40. 40.42 × 44 =

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