Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 815 · 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. 1.54 × 51 =
2. 2.298 × 296 =
3. 3.84 × 83 =
4. 4.208 × 202 =
5. 5.296 × 298 =
6. 6.391 × 392 =
7. 7.191 × 192 =
8. 8.203 × 205 =
9. 9.48 × 46 =
10. 10.309 × 302 =
11. 11.295 × 298 =
12. 12.69 × 69 =
13. 13.54 × 52 =
14. 14.44 × 42 =
15. 15.402 × 406 =
16. 16.32 × 31 =
17. 17.89 × 87 =
18. 18.393 × 392 =
19. 19.29 × 27 =
20. 20.29 × 28 =
21. 21.609 × 608 =
22. 22.54 × 53 =
23. 23.294 × 299 =
24. 24.39 × 36 =
25. 25.18 × 18 =
26. 26.74 × 73 =
27. 27.39 × 36 =
28. 28.198 × 191 =
29. 29.66 × 68 =
30. 30.74 × 73 =
31. 31.17 × 18 =
32. 32.599 × 598 =
33. 33.203 × 203 =
34. 34.63 × 62 =
35. 35.63 × 62 =
36. 36.64 × 63 =
37. 37.48 × 48 =
38. 38.392 × 392 =
39. 39.86 × 89 =
40. 40.87 × 86 =

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