Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 880 · 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. 1.81 × 81 =
2. 2.398 × 394 =
3. 3.509 × 509 =
4. 4.86 × 89 =
5. 5.31 × 34 =
6. 6.399 × 398 =
7. 7.191 × 196 =
8. 8.299 × 291 =
9. 9.596 × 594 =
10. 10.202 × 205 =
11. 11.92 × 93 =
12. 12.64 × 62 =
13. 13.48 × 47 =
14. 14.202 × 207 =
15. 15.37 × 39 =
16. 16.197 × 191 =
17. 17.82 × 81 =
18. 18.295 × 298 =
19. 19.605 × 606 =
20. 20.42 × 42 =
21. 21.599 × 595 =
22. 22.196 × 196 =
23. 23.603 × 608 =
24. 24.39 × 38 =
25. 25.28 × 29 =
26. 26.43 × 42 =
27. 27.58 × 58 =
28. 28.292 × 294 =
29. 29.397 × 397 =
30. 30.199 × 195 =
31. 31.397 × 394 =
32. 32.509 × 503 =
33. 33.19 × 16 =
34. 34.507 × 509 =
35. 35.21 × 22 =
36. 36.291 × 293 =
37. 37.53 × 53 =
38. 38.207 × 202 =
39. 39.33 × 31 =
40. 40.89 × 89 =

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