Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 973 · 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. 1.23 × 21 =
2. 2.76 × 76 =
3. 3.26 × 27 =
4. 4.291 × 297 =
5. 5.24 × 21 =
6. 6.599 × 593 =
7. 7.49 × 48 =
8. 8.37 × 39 =
9. 9.94 × 93 =
10. 10.309 × 308 =
11. 11.77 × 76 =
12. 12.37 × 38 =
13. 13.28 × 29 =
14. 14.307 × 305 =
15. 15.205 × 203 =
16. 16.204 × 209 =
17. 17.19 × 16 =
18. 18.294 × 292 =
19. 19.392 × 396 =
20. 20.68 × 69 =
21. 21.62 × 62 =
22. 22.407 × 404 =
23. 23.506 × 505 =
24. 24.24 × 24 =
25. 25.206 × 209 =
26. 26.61 × 61 =
27. 27.19 × 18 =
28. 28.293 × 294 =
29. 29.53 × 52 =
30. 30.193 × 194 =
31. 31.491 × 495 =
32. 32.303 × 305 =
33. 33.94 × 94 =
34. 34.504 × 505 =
35. 35.77 × 78 =
36. 36.494 × 499 =
37. 37.593 × 591 =
38. 38.69 × 67 =
39. 39.192 × 199 =
40. 40.52 × 52 =

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