Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 874 · 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. 1.82 × 82 =
2. 2.77 × 77 =
3. 3.199 × 197 =
4. 4.68 × 67 =
5. 5.493 × 499 =
6. 6.608 × 602 =
7. 7.395 × 394 =
8. 8.47 × 49 =
9. 9.28 × 29 =
10. 10.58 × 59 =
11. 11.81 × 84 =
12. 12.198 × 196 =
13. 13.206 × 205 =
14. 14.23 × 21 =
15. 15.195 × 195 =
16. 16.205 × 201 =
17. 17.18 × 17 =
18. 18.295 × 297 =
19. 19.17 × 18 =
20. 20.499 × 497 =
21. 21.84 × 84 =
22. 22.17 × 19 =
23. 23.33 × 33 =
24. 24.595 × 599 =
25. 25.89 × 88 =
26. 26.607 × 609 =
27. 27.92 × 94 =
28. 28.32 × 31 =
29. 29.67 × 69 =
30. 30.301 × 302 =
31. 31.41 × 41 =
32. 32.406 × 403 =
33. 33.206 × 203 =
34. 34.19 × 17 =
35. 35.56 × 57 =
36. 36.39 × 39 =
37. 37.494 × 491 =
38. 38.16 × 19 =
39. 39.22 × 22 =
40. 40.53 × 51 =

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