Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 723 · 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. 1.73 × 71 =
2. 2.84 × 84 =
3. 3.28 × 26 =
4. 4.392 × 397 =
5. 5.16 × 18 =
6. 6.38 × 36 =
7. 7.39 × 39 =
8. 8.294 × 293 =
9. 9.496 × 494 =
10. 10.301 × 303 =
11. 11.495 × 498 =
12. 12.93 × 92 =
13. 13.395 × 395 =
14. 14.47 × 49 =
15. 15.497 × 496 =
16. 16.394 × 395 =
17. 17.36 × 38 =
18. 18.76 × 78 =
19. 19.26 × 29 =
20. 20.193 × 198 =
21. 21.24 × 23 =
22. 22.197 × 192 =
23. 23.298 × 293 =
24. 24.49 × 46 =
25. 25.42 × 41 =
26. 26.303 × 305 =
27. 27.398 × 391 =
28. 28.39 × 38 =
29. 29.94 × 93 =
30. 30.43 × 41 =
31. 31.16 × 19 =
32. 32.19 × 19 =
33. 33.53 × 52 =
34. 34.63 × 62 =
35. 35.302 × 309 =
36. 36.33 × 31 =
37. 37.208 × 202 =
38. 38.609 × 604 =
39. 39.303 × 301 =
40. 40.408 × 404 =

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