Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 93 · 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. 1.17 × 17 =
2. 2.306 × 305 =
3. 3.77 × 78 =
4. 4.596 × 596 =
5. 5.56 × 57 =
6. 6.28 × 27 =
7. 7.493 × 494 =
8. 8.19 × 18 =
9. 9.306 × 304 =
10. 10.408 × 402 =
11. 11.608 × 609 =
12. 12.68 × 67 =
13. 13.19 × 18 =
14. 14.82 × 83 =
15. 15.194 × 196 =
16. 16.408 × 401 =
17. 17.195 × 195 =
18. 18.33 × 31 =
19. 19.507 × 503 =
20. 20.291 × 295 =
21. 21.497 × 494 =
22. 22.398 × 392 =
23. 23.495 × 494 =
24. 24.297 × 299 =
25. 25.46 × 46 =
26. 26.192 × 196 =
27. 27.41 × 44 =
28. 28.205 × 201 =
29. 29.76 × 79 =
30. 30.403 × 402 =
31. 31.306 × 304 =
32. 32.34 × 34 =
33. 33.301 × 304 =
34. 34.505 × 509 =
35. 35.51 × 54 =
36. 36.21 × 21 =
37. 37.497 × 492 =
38. 38.71 × 74 =
39. 39.18 × 19 =
40. 40.64 × 63 =

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