Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 63 · 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. 1.18 × 19 =
2. 2.27 × 26 =
3. 3.197 × 198 =
4. 4.402 × 403 =
5. 5.77 × 78 =
6. 6.41 × 42 =
7. 7.198 × 193 =
8. 8.81 × 82 =
9. 9.31 × 32 =
10. 10.295 × 293 =
11. 11.77 × 77 =
12. 12.306 × 305 =
13. 13.27 × 27 =
14. 14.61 × 62 =
15. 15.493 × 497 =
16. 16.38 × 39 =
17. 17.61 × 63 =
18. 18.57 × 59 =
19. 19.295 × 292 =
20. 20.199 × 191 =
21. 21.607 × 609 =
22. 22.401 × 401 =
23. 23.78 × 76 =
24. 24.607 × 607 =
25. 25.298 × 299 =
26. 26.593 × 596 =
27. 27.16 × 16 =
28. 28.291 × 293 =
29. 29.202 × 203 =
30. 30.71 × 74 =
31. 31.61 × 61 =
32. 32.407 × 401 =
33. 33.42 × 43 =
34. 34.71 × 72 =
35. 35.66 × 66 =
36. 36.409 × 406 =
37. 37.603 × 606 =
38. 38.394 × 397 =
39. 39.19 × 17 =
40. 40.29 × 28 =

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