Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 773 · 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. 1.77 × 76 =
2. 2.406 × 407 =
3. 3.83 × 81 =
4. 4.201 × 203 =
5. 5.61 × 62 =
6. 6.193 × 198 =
7. 7.62 × 61 =
8. 8.606 × 606 =
9. 9.17 × 18 =
10. 10.68 × 69 =
11. 11.66 × 68 =
12. 12.39 × 36 =
13. 13.73 × 71 =
14. 14.495 × 498 =
15. 15.505 × 505 =
16. 16.298 × 291 =
17. 17.93 × 91 =
18. 18.41 × 43 =
19. 19.71 × 74 =
20. 20.507 × 504 =
21. 21.81 × 83 =
22. 22.93 × 93 =
23. 23.49 × 46 =
24. 24.87 × 89 =
25. 25.66 × 68 =
26. 26.397 × 392 =
27. 27.31 × 33 =
28. 28.601 × 602 =
29. 29.81 × 82 =
30. 30.36 × 38 =
31. 31.89 × 88 =
32. 32.305 × 304 =
33. 33.21 × 21 =
34. 34.36 × 37 =
35. 35.42 × 42 =
36. 36.305 × 302 =
37. 37.602 × 609 =
38. 38.392 × 396 =
39. 39.195 × 191 =
40. 40.16 × 17 =

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