Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 150 · 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. 1.31 × 34 =
2. 2.28 × 27 =
3. 3.38 × 38 =
4. 4.494 × 497 =
5. 5.397 × 397 =
6. 6.203 × 207 =
7. 7.399 × 399 =
8. 8.197 × 192 =
9. 9.27 × 27 =
10. 10.32 × 34 =
11. 11.592 × 597 =
12. 12.21 × 21 =
13. 13.64 × 62 =
14. 14.17 × 17 =
15. 15.499 × 499 =
16. 16.49 × 47 =
17. 17.49 × 48 =
18. 18.407 × 405 =
19. 19.603 × 603 =
20. 20.56 × 58 =
21. 21.66 × 69 =
22. 22.602 × 604 =
23. 23.46 × 48 =
24. 24.61 × 61 =
25. 25.198 × 197 =
26. 26.82 × 82 =
27. 27.193 × 193 =
28. 28.209 × 201 =
29. 29.52 × 51 =
30. 30.198 × 197 =
31. 31.304 × 306 =
32. 32.204 × 206 =
33. 33.192 × 199 =
34. 34.59 × 56 =
35. 35.26 × 28 =
36. 36.497 × 499 =
37. 37.398 × 396 =
38. 38.48 × 48 =
39. 39.78 × 78 =
40. 40.206 × 205 =

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