Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 758 · 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. 1.67 × 67 =
2. 2.78 × 78 =
3. 3.307 × 306 =
4. 4.209 × 205 =
5. 5.501 × 504 =
6. 6.392 × 397 =
7. 7.596 × 591 =
8. 8.606 × 601 =
9. 9.71 × 74 =
10. 10.503 × 502 =
11. 11.27 × 27 =
12. 12.597 × 597 =
13. 13.199 × 197 =
14. 14.17 × 19 =
15. 15.309 × 308 =
16. 16.29 × 27 =
17. 17.407 × 409 =
18. 18.74 × 72 =
19. 19.398 × 393 =
20. 20.197 × 199 =
21. 21.88 × 89 =
22. 22.44 × 42 =
23. 23.91 × 91 =
24. 24.18 × 17 =
25. 25.81 × 82 =
26. 26.503 × 506 =
27. 27.58 × 57 =
28. 28.26 × 26 =
29. 29.23 × 24 =
30. 30.602 × 602 =
31. 31.66 × 69 =
32. 32.18 × 18 =
33. 33.495 × 497 =
34. 34.39 × 38 =
35. 35.601 × 609 =
36. 36.49 × 46 =
37. 37.41 × 41 =
38. 38.52 × 54 =
39. 39.68 × 68 =
40. 40.62 × 62 =

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