Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 944 · 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. 1.89 × 87 =
2. 2.307 × 308 =
3. 3.197 × 194 =
4. 4.493 × 496 =
5. 5.78 × 79 =
6. 6.62 × 63 =
7. 7.208 × 201 =
8. 8.82 × 81 =
9. 9.193 × 192 =
10. 10.69 × 69 =
11. 11.31 × 34 =
12. 12.68 × 69 =
13. 13.82 × 81 =
14. 14.59 × 58 =
15. 15.16 × 18 =
16. 16.73 × 72 =
17. 17.71 × 74 =
18. 18.47 × 46 =
19. 19.34 × 31 =
20. 20.66 × 67 =
21. 21.408 × 409 =
22. 22.193 × 196 =
23. 23.38 × 36 =
24. 24.397 × 396 =
25. 25.298 × 291 =
26. 26.72 × 71 =
27. 27.73 × 74 =
28. 28.504 × 507 =
29. 29.296 × 296 =
30. 30.83 × 84 =
31. 31.47 × 48 =
32. 32.86 × 89 =
33. 33.605 × 606 =
34. 34.63 × 64 =
35. 35.497 × 494 =
36. 36.16 × 16 =
37. 37.68 × 68 =
38. 38.32 × 34 =
39. 39.198 × 199 =
40. 40.22 × 22 =

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