Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 52 · 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. 1.202 × 207 =
2. 2.308 × 306 =
3. 3.38 × 37 =
4. 4.202 × 206 =
5. 5.84 × 84 =
6. 6.294 × 291 =
7. 7.76 × 77 =
8. 8.29 × 27 =
9. 9.309 × 306 =
10. 10.508 × 501 =
11. 11.605 × 609 =
12. 12.591 × 595 =
13. 13.599 × 592 =
14. 14.53 × 54 =
15. 15.27 × 28 =
16. 16.201 × 207 =
17. 17.507 × 502 =
18. 18.77 × 79 =
19. 19.399 × 398 =
20. 20.306 × 304 =
21. 21.91 × 92 =
22. 22.91 × 93 =
23. 23.38 × 39 =
24. 24.71 × 72 =
25. 25.407 × 403 =
26. 26.405 × 403 =
27. 27.61 × 64 =
28. 28.31 × 33 =
29. 29.197 × 193 =
30. 30.198 × 194 =
31. 31.79 × 78 =
32. 32.508 × 507 =
33. 33.609 × 603 =
34. 34.67 × 69 =
35. 35.61 × 62 =
36. 36.84 × 83 =
37. 37.17 × 19 =
38. 38.17 × 19 =
39. 39.395 × 398 =
40. 40.501 × 502 =

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