Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 130 · 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. 1.506 × 502 =
2. 2.58 × 59 =
3. 3.69 × 66 =
4. 4.16 × 16 =
5. 5.505 × 504 =
6. 6.305 × 304 =
7. 7.22 × 21 =
8. 8.603 × 601 =
9. 9.51 × 53 =
10. 10.33 × 34 =
11. 11.409 × 401 =
12. 12.499 × 498 =
13. 13.31 × 31 =
14. 14.18 × 17 =
15. 15.294 × 296 =
16. 16.208 × 203 =
17. 17.71 × 74 =
18. 18.76 × 76 =
19. 19.89 × 88 =
20. 20.492 × 494 =
21. 21.67 × 69 =
22. 22.201 × 204 =
23. 23.503 × 508 =
24. 24.594 × 593 =
25. 25.39 × 36 =
26. 26.208 × 203 =
27. 27.305 × 305 =
28. 28.604 × 602 =
29. 29.409 × 405 =
30. 30.93 × 92 =
31. 31.297 × 297 =
32. 32.409 × 407 =
33. 33.209 × 203 =
34. 34.36 × 39 =
35. 35.32 × 33 =
36. 36.597 × 599 =
37. 37.41 × 43 =
38. 38.405 × 407 =
39. 39.33 × 31 =
40. 40.609 × 606 =

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