Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 17 · 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. 1.507 × 505 =
2. 2.91 × 94 =
3. 3.73 × 74 =
4. 4.594 × 596 =
5. 5.77 × 77 =
6. 6.298 × 298 =
7. 7.194 × 199 =
8. 8.94 × 91 =
9. 9.16 × 19 =
10. 10.398 × 391 =
11. 11.498 × 496 =
12. 12.407 × 406 =
13. 13.399 × 397 =
14. 14.69 × 68 =
15. 15.601 × 604 =
16. 16.39 × 38 =
17. 17.74 × 72 =
18. 18.203 × 202 =
19. 19.71 × 71 =
20. 20.497 × 491 =
21. 21.56 × 57 =
22. 22.17 × 17 =
23. 23.58 × 56 =
24. 24.494 × 496 =
25. 25.306 × 308 =
26. 26.89 × 88 =
27. 27.191 × 194 =
28. 28.491 × 494 =
29. 29.44 × 41 =
30. 30.58 × 59 =
31. 31.72 × 74 =
32. 32.83 × 84 =
33. 33.68 × 67 =
34. 34.42 × 42 =
35. 35.399 × 396 =
36. 36.193 × 198 =
37. 37.21 × 24 =
38. 38.497 × 496 =
39. 39.37 × 38 =
40. 40.299 × 296 =

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