Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 495 · 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. 1.404 × 408 =
2. 2.78 × 79 =
3. 3.77 × 77 =
4. 4.27 × 27 =
5. 5.56 × 57 =
6. 6.47 × 46 =
7. 7.393 × 397 =
8. 8.393 × 392 =
9. 9.69 × 68 =
10. 10.81 × 81 =
11. 11.18 × 16 =
12. 12.198 × 197 =
13. 13.31 × 33 =
14. 14.208 × 205 =
15. 15.205 × 208 =
16. 16.194 × 192 =
17. 17.23 × 22 =
18. 18.17 × 17 =
19. 19.68 × 68 =
20. 20.91 × 91 =
21. 21.198 × 199 =
22. 22.47 × 47 =
23. 23.205 × 208 =
24. 24.64 × 61 =
25. 25.608 × 605 =
26. 26.16 × 18 =
27. 27.66 × 66 =
28. 28.199 × 192 =
29. 29.594 × 593 =
30. 30.397 × 391 =
31. 31.73 × 71 =
32. 32.68 × 69 =
33. 33.71 × 74 =
34. 34.56 × 59 =
35. 35.67 × 67 =
36. 36.93 × 93 =
37. 37.294 × 298 =
38. 38.207 × 206 =
39. 39.63 × 63 =
40. 40.56 × 56 =

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