Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 119 · 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. 1.67 × 66 =
2. 2.198 × 196 =
3. 3.496 × 493 =
4. 4.501 × 506 =
5. 5.69 × 69 =
6. 6.78 × 77 =
7. 7.505 × 509 =
8. 8.28 × 27 =
9. 9.294 × 294 =
10. 10.58 × 58 =
11. 11.19 × 19 =
12. 12.495 × 495 =
13. 13.43 × 41 =
14. 14.78 × 77 =
15. 15.69 × 67 =
16. 16.23 × 24 =
17. 17.199 × 195 =
18. 18.193 × 192 =
19. 19.31 × 31 =
20. 20.505 × 509 =
21. 21.54 × 51 =
22. 22.18 × 17 =
23. 23.32 × 31 =
24. 24.38 × 37 =
25. 25.195 × 199 =
26. 26.308 × 303 =
27. 27.57 × 56 =
28. 28.59 × 58 =
29. 29.292 × 295 =
30. 30.22 × 24 =
31. 31.46 × 49 =
32. 32.93 × 94 =
33. 33.207 × 204 =
34. 34.407 × 407 =
35. 35.296 × 298 =
36. 36.62 × 61 =
37. 37.84 × 81 =
38. 38.94 × 92 =
39. 39.19 × 18 =
40. 40.199 × 191 =

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