Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 665 · 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. 1.52 × 53 =
2. 2.37 × 39 =
3. 3.71 × 73 =
4. 4.26 × 28 =
5. 5.18 × 18 =
6. 6.596 × 598 =
7. 7.407 × 401 =
8. 8.196 × 194 =
9. 9.82 × 82 =
10. 10.408 × 408 =
11. 11.59 × 59 =
12. 12.401 × 402 =
13. 13.67 × 69 =
14. 14.74 × 72 =
15. 15.509 × 505 =
16. 16.31 × 31 =
17. 17.299 × 297 =
18. 18.21 × 21 =
19. 19.596 × 598 =
20. 20.42 × 41 =
21. 21.22 × 21 =
22. 22.305 × 303 =
23. 23.299 × 295 =
24. 24.29 × 26 =
25. 25.19 × 17 =
26. 26.392 × 393 =
27. 27.293 × 297 =
28. 28.93 × 91 =
29. 29.92 × 93 =
30. 30.83 × 81 =
31. 31.78 × 78 =
32. 32.58 × 56 =
33. 33.64 × 64 =
34. 34.29 × 29 =
35. 35.81 × 84 =
36. 36.203 × 201 =
37. 37.28 × 28 =
38. 38.499 × 499 =
39. 39.305 × 304 =
40. 40.294 × 295 =

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