Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 863 · 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. 1.504 × 504 =
2. 2.69 × 69 =
3. 3.203 × 209 =
4. 4.89 × 88 =
5. 5.601 × 607 =
6. 6.298 × 298 =
7. 7.301 × 305 =
8. 8.409 × 405 =
9. 9.208 × 203 =
10. 10.88 × 86 =
11. 11.73 × 72 =
12. 12.493 × 497 =
13. 13.398 × 391 =
14. 14.64 × 63 =
15. 15.604 × 609 =
16. 16.602 × 604 =
17. 17.66 × 68 =
18. 18.72 × 71 =
19. 19.21 × 24 =
20. 20.17 × 16 =
21. 21.199 × 191 =
22. 22.399 × 392 =
23. 23.202 × 208 =
24. 24.33 × 34 =
25. 25.66 × 67 =
26. 26.394 × 394 =
27. 27.31 × 31 =
28. 28.298 × 298 =
29. 29.202 × 208 =
30. 30.42 × 44 =
31. 31.33 × 34 =
32. 32.92 × 91 =
33. 33.36 × 36 =
34. 34.43 × 44 =
35. 35.26 × 27 =
36. 36.593 × 596 =
37. 37.41 × 43 =
38. 38.609 × 604 =
39. 39.69 × 67 =
40. 40.392 × 398 =

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