Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 869 · 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. 1.76 × 77 =
2. 2.605 × 609 =
3. 3.401 × 404 =
4. 4.191 × 195 =
5. 5.392 × 391 =
6. 6.409 × 408 =
7. 7.19 × 18 =
8. 8.494 × 499 =
9. 9.197 × 193 =
10. 10.56 × 57 =
11. 11.68 × 66 =
12. 12.93 × 94 =
13. 13.16 × 19 =
14. 14.72 × 74 =
15. 15.38 × 38 =
16. 16.391 × 399 =
17. 17.18 × 16 =
18. 18.398 × 397 =
19. 19.17 × 16 =
20. 20.59 × 57 =
21. 21.402 × 406 =
22. 22.19 × 16 =
23. 23.24 × 22 =
24. 24.58 × 59 =
25. 25.89 × 86 =
26. 26.16 × 17 =
27. 27.307 × 302 =
28. 28.59 × 58 =
29. 29.392 × 399 =
30. 30.602 × 609 =
31. 31.87 × 86 =
32. 32.86 × 87 =
33. 33.393 × 392 =
34. 34.395 × 398 =
35. 35.199 × 192 =
36. 36.506 × 507 =
37. 37.303 × 303 =
38. 38.605 × 607 =
39. 39.496 × 495 =
40. 40.31 × 32 =

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