Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 647 · 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. 1.66 × 68 =
2. 2.66 × 69 =
3. 3.81 × 83 =
4. 4.604 × 601 =
5. 5.497 × 493 =
6. 6.29 × 27 =
7. 7.498 × 492 =
8. 8.503 × 502 =
9. 9.199 × 191 =
10. 10.93 × 91 =
11. 11.89 × 86 =
12. 12.198 × 193 =
13. 13.51 × 51 =
14. 14.308 × 306 =
15. 15.208 × 201 =
16. 16.598 × 599 =
17. 17.28 × 28 =
18. 18.404 × 408 =
19. 19.37 × 36 =
20. 20.19 × 19 =
21. 21.308 × 309 =
22. 22.41 × 42 =
23. 23.497 × 494 =
24. 24.295 × 298 =
25. 25.205 × 205 =
26. 26.307 × 308 =
27. 27.47 × 46 =
28. 28.23 × 23 =
29. 29.41 × 43 =
30. 30.18 × 17 =
31. 31.309 × 303 =
32. 32.59 × 58 =
33. 33.33 × 34 =
34. 34.403 × 405 =
35. 35.409 × 405 =
36. 36.605 × 606 =
37. 37.296 × 293 =
38. 38.604 × 606 =
39. 39.92 × 94 =
40. 40.81 × 81 =

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