Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 347 · 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. 1.69 × 69 =
2. 2.593 × 595 =
3. 3.502 × 503 =
4. 4.51 × 53 =
5. 5.302 × 301 =
6. 6.54 × 54 =
7. 7.391 × 392 =
8. 8.32 × 33 =
9. 9.39 × 39 =
10. 10.43 × 43 =
11. 11.202 × 208 =
12. 12.499 × 496 =
13. 13.94 × 92 =
14. 14.72 × 74 =
15. 15.66 × 67 =
16. 16.41 × 44 =
17. 17.309 × 305 =
18. 18.19 × 17 =
19. 19.41 × 43 =
20. 20.42 × 42 =
21. 21.34 × 34 =
22. 22.39 × 37 =
23. 23.199 × 194 =
24. 24.502 × 504 =
25. 25.208 × 207 =
26. 26.394 × 394 =
27. 27.16 × 19 =
28. 28.72 × 73 =
29. 29.404 × 404 =
30. 30.609 × 601 =
31. 31.56 × 57 =
32. 32.393 × 397 =
33. 33.308 × 302 =
34. 34.27 × 27 =
35. 35.37 × 38 =
36. 36.606 × 602 =
37. 37.23 × 22 =
38. 38.208 × 202 =
39. 39.78 × 78 =
40. 40.24 × 21 =

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