Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 531 · 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. 1.298 × 292 =
2. 2.69 × 69 =
3. 3.393 × 399 =
4. 4.292 × 295 =
5. 5.22 × 23 =
6. 6.592 × 598 =
7. 7.193 × 198 =
8. 8.66 × 66 =
9. 9.194 × 195 =
10. 10.28 × 28 =
11. 11.292 × 299 =
12. 12.295 × 297 =
13. 13.81 × 81 =
14. 14.92 × 92 =
15. 15.49 × 47 =
16. 16.71 × 73 =
17. 17.61 × 62 =
18. 18.402 × 407 =
19. 19.293 × 297 =
20. 20.46 × 48 =
21. 21.395 × 395 =
22. 22.592 × 591 =
23. 23.391 × 395 =
24. 24.22 × 24 =
25. 25.297 × 291 =
26. 26.201 × 201 =
27. 27.49 × 49 =
28. 28.197 × 195 =
29. 29.192 × 192 =
30. 30.397 × 399 =
31. 31.28 × 29 =
32. 32.598 × 595 =
33. 33.37 × 37 =
34. 34.29 × 26 =
35. 35.203 × 207 =
36. 36.208 × 201 =
37. 37.609 × 606 =
38. 38.305 × 307 =
39. 39.24 × 21 =
40. 40.298 × 297 =

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