Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 460 · 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. 1.502 × 503 =
2. 2.505 × 503 =
3. 3.201 × 205 =
4. 4.398 × 399 =
5. 5.504 × 502 =
6. 6.89 × 86 =
7. 7.294 × 294 =
8. 8.58 × 58 =
9. 9.18 × 18 =
10. 10.33 × 32 =
11. 11.298 × 297 =
12. 12.604 × 606 =
13. 13.82 × 82 =
14. 14.199 × 198 =
15. 15.23 × 22 =
16. 16.16 × 17 =
17. 17.94 × 91 =
18. 18.34 × 34 =
19. 19.22 × 22 =
20. 20.305 × 305 =
21. 21.202 × 204 =
22. 22.204 × 208 =
23. 23.597 × 593 =
24. 24.76 × 78 =
25. 25.17 × 19 =
26. 26.39 × 36 =
27. 27.293 × 296 =
28. 28.29 × 27 =
29. 29.502 × 504 =
30. 30.42 × 42 =
31. 31.87 × 88 =
32. 32.37 × 39 =
33. 33.602 × 602 =
34. 34.94 × 94 =
35. 35.59 × 58 =
36. 36.505 × 501 =
37. 37.406 × 401 =
38. 38.503 × 501 =
39. 39.397 × 395 =
40. 40.597 × 597 =

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