Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 969 · 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. 1.39 × 38 =
2. 2.396 × 393 =
3. 3.205 × 202 =
4. 4.595 × 595 =
5. 5.32 × 32 =
6. 6.56 × 59 =
7. 7.499 × 495 =
8. 8.47 × 48 =
9. 9.298 × 299 =
10. 10.407 × 404 =
11. 11.32 × 31 =
12. 12.58 × 59 =
13. 13.24 × 23 =
14. 14.78 × 77 =
15. 15.92 × 91 =
16. 16.193 × 191 =
17. 17.62 × 64 =
18. 18.203 × 206 =
19. 19.499 × 499 =
20. 20.594 × 593 =
21. 21.22 × 22 =
22. 22.28 × 29 =
23. 23.203 × 205 =
24. 24.74 × 72 =
25. 25.22 × 22 =
26. 26.39 × 36 =
27. 27.493 × 499 =
28. 28.61 × 63 =
29. 29.208 × 204 =
30. 30.398 × 399 =
31. 31.53 × 54 =
32. 32.194 × 195 =
33. 33.54 × 52 =
34. 34.36 × 39 =
35. 35.29 × 27 =
36. 36.304 × 308 =
37. 37.29 × 29 =
38. 38.56 × 57 =
39. 39.502 × 501 =
40. 40.406 × 406 =

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