Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 78 · 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. 2.399 × 399 =
3. 3.79 × 79 =
4. 4.592 × 599 =
5. 5.72 × 71 =
6. 6.39 × 37 =
7. 7.56 × 56 =
8. 8.301 × 301 =
9. 9.401 × 408 =
10. 10.76 × 76 =
11. 11.73 × 74 =
12. 12.89 × 86 =
13. 13.201 × 206 =
14. 14.16 × 19 =
15. 15.41 × 41 =
16. 16.503 × 501 =
17. 17.31 × 31 =
18. 18.391 × 391 =
19. 19.308 × 304 =
20. 20.601 × 605 =
21. 21.493 × 492 =
22. 22.195 × 196 =
23. 23.198 × 196 =
24. 24.54 × 51 =
25. 25.81 × 84 =
26. 26.68 × 67 =
27. 27.191 × 192 =
28. 28.299 × 293 =
29. 29.299 × 299 =
30. 30.396 × 394 =
31. 31.72 × 73 =
32. 32.206 × 204 =
33. 33.44 × 43 =
34. 34.399 × 395 =
35. 35.81 × 81 =
36. 36.17 × 17 =
37. 37.49 × 48 =
38. 38.52 × 53 =
39. 39.72 × 73 =
40. 40.84 × 84 =

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