Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 522 · 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. 1.502 × 502 =
2. 2.498 × 499 =
3. 3.66 × 69 =
4. 4.591 × 599 =
5. 5.22 × 23 =
6. 6.598 × 596 =
7. 7.409 × 406 =
8. 8.88 × 89 =
9. 9.293 × 297 =
10. 10.18 × 17 =
11. 11.86 × 88 =
12. 12.47 × 48 =
13. 13.29 × 27 =
14. 14.92 × 94 =
15. 15.44 × 44 =
16. 16.54 × 51 =
17. 17.73 × 73 =
18. 18.295 × 291 =
19. 19.79 × 77 =
20. 20.295 × 296 =
21. 21.71 × 74 =
22. 22.28 × 29 =
23. 23.199 × 196 =
24. 24.395 × 394 =
25. 25.607 × 603 =
26. 26.54 × 52 =
27. 27.595 × 594 =
28. 28.31 × 34 =
29. 29.193 × 194 =
30. 30.19 × 19 =
31. 31.58 × 58 =
32. 32.594 × 591 =
33. 33.58 × 56 =
34. 34.597 × 597 =
35. 35.16 × 18 =
36. 36.23 × 24 =
37. 37.78 × 79 =
38. 38.23 × 23 =
39. 39.395 × 392 =
40. 40.76 × 76 =

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