Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 398 · 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. 1.508 × 506 =
2. 2.302 × 301 =
3. 3.21 × 22 =
4. 4.26 × 27 =
5. 5.21 × 23 =
6. 6.395 × 398 =
7. 7.193 × 191 =
8. 8.608 × 601 =
9. 9.84 × 81 =
10. 10.76 × 77 =
11. 11.31 × 32 =
12. 12.393 × 398 =
13. 13.48 × 47 =
14. 14.18 × 18 =
15. 15.66 × 67 =
16. 16.602 × 609 =
17. 17.77 × 77 =
18. 18.71 × 73 =
19. 19.76 × 79 =
20. 20.76 × 77 =
21. 21.42 × 41 =
22. 22.19 × 18 =
23. 23.208 × 208 =
24. 24.305 × 308 =
25. 25.42 × 42 =
26. 26.197 × 196 =
27. 27.607 × 602 =
28. 28.83 × 82 =
29. 29.198 × 196 =
30. 30.503 × 502 =
31. 31.92 × 91 =
32. 32.205 × 201 =
33. 33.63 × 62 =
34. 34.408 × 402 =
35. 35.69 × 66 =
36. 36.501 × 508 =
37. 37.301 × 304 =
38. 38.71 × 71 =
39. 39.19 × 18 =
40. 40.76 × 77 =

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