Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 675 · 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. 1.197 × 198 =
2. 2.501 × 502 =
3. 3.54 × 54 =
4. 4.395 × 392 =
5. 5.494 × 494 =
6. 6.302 × 306 =
7. 7.94 × 92 =
8. 8.48 × 46 =
9. 9.599 × 592 =
10. 10.308 × 303 =
11. 11.199 × 196 =
12. 12.52 × 54 =
13. 13.34 × 33 =
14. 14.62 × 64 =
15. 15.499 × 492 =
16. 16.499 × 498 =
17. 17.39 × 36 =
18. 18.397 × 392 =
19. 19.44 × 44 =
20. 20.307 × 307 =
21. 21.39 × 36 =
22. 22.403 × 409 =
23. 23.56 × 59 =
24. 24.23 × 21 =
25. 25.193 × 191 =
26. 26.299 × 298 =
27. 27.293 × 296 =
28. 28.74 × 73 =
29. 29.192 × 198 =
30. 30.504 × 504 =
31. 31.64 × 63 =
32. 32.38 × 39 =
33. 33.599 × 594 =
34. 34.69 × 68 =
35. 35.92 × 92 =
36. 36.93 × 94 =
37. 37.16 × 18 =
38. 38.604 × 601 =
39. 39.394 × 394 =
40. 40.79 × 76 =

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