Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 740 · 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. 1.21 × 22 =
2. 2.94 × 94 =
3. 3.31 × 32 =
4. 4.507 × 503 =
5. 5.307 × 302 =
6. 6.27 × 27 =
7. 7.31 × 34 =
8. 8.297 × 291 =
9. 9.53 × 54 =
10. 10.73 × 73 =
11. 11.69 × 67 =
12. 12.87 × 89 =
13. 13.28 × 27 =
14. 14.202 × 205 =
15. 15.77 × 78 =
16. 16.32 × 32 =
17. 17.393 × 399 =
18. 18.58 × 59 =
19. 19.88 × 86 =
20. 20.493 × 498 =
21. 21.77 × 76 =
22. 22.93 × 94 =
23. 23.297 × 296 =
24. 24.39 × 39 =
25. 25.193 × 193 =
26. 26.494 × 491 =
27. 27.597 × 599 =
28. 28.43 × 43 =
29. 29.503 × 502 =
30. 30.497 × 495 =
31. 31.21 × 22 =
32. 32.77 × 76 =
33. 33.591 × 597 =
34. 34.34 × 32 =
35. 35.298 × 295 =
36. 36.403 × 408 =
37. 37.16 × 17 =
38. 38.398 × 397 =
39. 39.194 × 191 =
40. 40.53 × 54 =

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