Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 281 · 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. 1.62 × 64 =
2. 2.38 × 37 =
3. 3.41 × 42 =
4. 4.396 × 397 =
5. 5.202 × 209 =
6. 6.402 × 409 =
7. 7.67 × 69 =
8. 8.206 × 207 =
9. 9.54 × 53 =
10. 10.28 × 26 =
11. 11.493 × 494 =
12. 12.54 × 53 =
13. 13.59 × 58 =
14. 14.19 × 16 =
15. 15.22 × 23 =
16. 16.495 × 499 =
17. 17.92 × 94 =
18. 18.52 × 52 =
19. 19.92 × 94 =
20. 20.197 × 198 =
21. 21.408 × 403 =
22. 22.595 × 593 =
23. 23.21 × 22 =
24. 24.403 × 407 =
25. 25.406 × 406 =
26. 26.597 × 593 =
27. 27.595 × 595 =
28. 28.391 × 398 =
29. 29.38 × 37 =
30. 30.39 × 39 =
31. 31.54 × 54 =
32. 32.52 × 54 =
33. 33.408 × 406 =
34. 34.192 × 194 =
35. 35.606 × 603 =
36. 36.79 × 77 =
37. 37.16 × 19 =
38. 38.197 × 194 =
39. 39.504 × 504 =
40. 40.32 × 32 =

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