Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 394 · 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. 1.64 × 61 =
2. 2.601 × 602 =
3. 3.602 × 609 =
4. 4.205 × 209 =
5. 5.295 × 293 =
6. 6.594 × 598 =
7. 7.67 × 68 =
8. 8.194 × 199 =
9. 9.29 × 29 =
10. 10.292 × 291 =
11. 11.302 × 302 =
12. 12.297 × 293 =
13. 13.41 × 43 =
14. 14.493 × 495 =
15. 15.81 × 82 =
16. 16.301 × 305 =
17. 17.42 × 41 =
18. 18.192 × 198 =
19. 19.79 × 76 =
20. 20.401 × 401 =
21. 21.191 × 191 =
22. 22.199 × 193 =
23. 23.597 × 597 =
24. 24.599 × 597 =
25. 25.401 × 401 =
26. 26.37 × 38 =
27. 27.58 × 57 =
28. 28.24 × 23 =
29. 29.41 × 43 =
30. 30.598 × 595 =
31. 31.59 × 56 =
32. 32.44 × 44 =
33. 33.597 × 598 =
34. 34.505 × 505 =
35. 35.31 × 31 =
36. 36.91 × 94 =
37. 37.207 × 208 =
38. 38.599 × 598 =
39. 39.47 × 47 =
40. 40.22 × 21 =

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