Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 209 · 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. 1.605 × 605 =
2. 2.94 × 92 =
3. 3.496 × 499 =
4. 4.29 × 28 =
5. 5.203 × 202 =
6. 6.78 × 76 =
7. 7.16 × 18 =
8. 8.54 × 53 =
9. 9.19 × 18 =
10. 10.84 × 81 =
11. 11.67 × 68 =
12. 12.27 × 29 =
13. 13.94 × 92 =
14. 14.605 × 607 =
15. 15.494 × 491 =
16. 16.89 × 89 =
17. 17.87 × 89 =
18. 18.193 × 193 =
19. 19.293 × 294 =
20. 20.196 × 194 =
21. 21.605 × 606 =
22. 22.28 × 26 =
23. 23.499 × 491 =
24. 24.43 × 43 =
25. 25.71 × 71 =
26. 26.506 × 508 =
27. 27.91 × 93 =
28. 28.21 × 24 =
29. 29.507 × 504 =
30. 30.73 × 72 =
31. 31.403 × 402 =
32. 32.79 × 78 =
33. 33.499 × 497 =
34. 34.294 × 299 =
35. 35.33 × 31 =
36. 36.198 × 195 =
37. 37.492 × 499 =
38. 38.296 × 299 =
39. 39.16 × 16 =
40. 40.71 × 74 =

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