Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 812 · 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. 1.52 × 52 =
2. 2.92 × 93 =
3. 3.209 × 205 =
4. 4.42 × 41 =
5. 5.37 × 39 =
6. 6.32 × 34 =
7. 7.397 × 397 =
8. 8.88 × 89 =
9. 9.43 × 41 =
10. 10.496 × 495 =
11. 11.609 × 605 =
12. 12.84 × 83 =
13. 13.209 × 208 =
14. 14.299 × 297 =
15. 15.394 × 392 =
16. 16.62 × 61 =
17. 17.302 × 301 =
18. 18.395 × 391 =
19. 19.51 × 54 =
20. 20.406 × 409 =
21. 21.201 × 208 =
22. 22.51 × 53 =
23. 23.594 × 598 =
24. 24.29 × 28 =
25. 25.32 × 31 =
26. 26.24 × 24 =
27. 27.58 × 57 =
28. 28.41 × 44 =
29. 29.601 × 608 =
30. 30.17 × 16 =
31. 31.304 × 309 =
32. 32.495 × 493 =
33. 33.26 × 28 =
34. 34.205 × 203 =
35. 35.508 × 507 =
36. 36.504 × 506 =
37. 37.69 × 66 =
38. 38.595 × 594 =
39. 39.498 × 492 =
40. 40.495 × 493 =

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