Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 938 · 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. 2.91 × 91 =
3. 3.54 × 54 =
4. 4.26 × 27 =
5. 5.32 × 34 =
6. 6.395 × 393 =
7. 7.301 × 303 =
8. 8.394 × 392 =
9. 9.26 × 28 =
10. 10.41 × 41 =
11. 11.399 × 393 =
12. 12.201 × 209 =
13. 13.42 × 42 =
14. 14.199 × 198 =
15. 15.23 × 24 =
16. 16.28 × 29 =
17. 17.16 × 16 =
18. 18.306 × 301 =
19. 19.32 × 34 =
20. 20.19 × 17 =
21. 21.31 × 32 =
22. 22.54 × 54 =
23. 23.27 × 26 =
24. 24.309 × 301 =
25. 25.16 × 19 =
26. 26.596 × 597 =
27. 27.19 × 16 =
28. 28.604 × 609 =
29. 29.201 × 208 =
30. 30.491 × 496 =
31. 31.596 × 592 =
32. 32.66 × 68 =
33. 33.17 × 16 =
34. 34.81 × 83 =
35. 35.74 × 74 =
36. 36.31 × 33 =
37. 37.19 × 19 =
38. 38.82 × 81 =
39. 39.39 × 39 =
40. 40.28 × 29 =

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