Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 627 · 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. 2.305 × 304 =
3. 3.79 × 77 =
4. 4.84 × 81 =
5. 5.31 × 31 =
6. 6.394 × 398 =
7. 7.206 × 209 =
8. 8.29 × 28 =
9. 9.16 × 16 =
10. 10.78 × 78 =
11. 11.23 × 24 =
12. 12.16 × 19 =
13. 13.86 × 86 =
14. 14.197 × 192 =
15. 15.42 × 43 =
16. 16.206 × 207 =
17. 17.47 × 49 =
18. 18.48 × 49 =
19. 19.23 × 22 =
20. 20.296 × 298 =
21. 21.509 × 501 =
22. 22.34 × 32 =
23. 23.27 × 26 =
24. 24.598 × 598 =
25. 25.202 × 208 =
26. 26.34 × 31 =
27. 27.407 × 408 =
28. 28.191 × 193 =
29. 29.57 × 56 =
30. 30.69 × 66 =
31. 31.309 × 303 =
32. 32.299 × 297 =
33. 33.59 × 59 =
34. 34.595 × 594 =
35. 35.28 × 26 =
36. 36.63 × 63 =
37. 37.606 × 602 =
38. 38.76 × 76 =
39. 39.52 × 54 =
40. 40.87 × 86 =

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