Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 534 · 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. 2.306 × 301 =
3. 3.82 × 83 =
4. 4.17 × 19 =
5. 5.205 × 207 =
6. 6.79 × 78 =
7. 7.21 × 23 =
8. 8.43 × 43 =
9. 9.205 × 203 =
10. 10.407 × 407 =
11. 11.595 × 598 =
12. 12.29 × 29 =
13. 13.503 × 508 =
14. 14.204 × 202 =
15. 15.198 × 192 =
16. 16.47 × 48 =
17. 17.194 × 195 =
18. 18.89 × 86 =
19. 19.83 × 82 =
20. 20.21 × 24 =
21. 21.501 × 504 =
22. 22.209 × 203 =
23. 23.608 × 607 =
24. 24.407 × 407 =
25. 25.41 × 44 =
26. 26.57 × 56 =
27. 27.391 × 396 =
28. 28.77 × 79 =
29. 29.502 × 508 =
30. 30.606 × 604 =
31. 31.392 × 393 =
32. 32.44 × 44 =
33. 33.89 × 89 =
34. 34.89 × 88 =
35. 35.29 × 27 =
36. 36.306 × 306 =
37. 37.404 × 401 =
38. 38.17 × 18 =
39. 39.407 × 404 =
40. 40.27 × 28 =

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