Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 30 · 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. 1.207 × 207 =
2. 2.43 × 42 =
3. 3.69 × 67 =
4. 4.86 × 89 =
5. 5.41 × 42 =
6. 6.26 × 27 =
7. 7.72 × 74 =
8. 8.205 × 206 =
9. 9.58 × 56 =
10. 10.19 × 17 =
11. 11.396 × 396 =
12. 12.52 × 51 =
13. 13.502 × 508 =
14. 14.19 × 19 =
15. 15.93 × 93 =
16. 16.47 × 49 =
17. 17.54 × 54 =
18. 18.68 × 66 =
19. 19.199 × 194 =
20. 20.495 × 493 =
21. 21.409 × 406 =
22. 22.89 × 88 =
23. 23.76 × 79 =
24. 24.84 × 83 =
25. 25.92 × 94 =
26. 26.36 × 39 =
27. 27.197 × 194 =
28. 28.22 × 22 =
29. 29.202 × 201 =
30. 30.607 × 608 =
31. 31.83 × 83 =
32. 32.41 × 43 =
33. 33.18 × 19 =
34. 34.79 × 76 =
35. 35.202 × 203 =
36. 36.74 × 72 =
37. 37.499 × 496 =
38. 38.491 × 492 =
39. 39.195 × 193 =
40. 40.196 × 192 =

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