Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 415 · 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. 1.47 × 48 =
2. 2.47 × 46 =
3. 3.399 × 391 =
4. 4.399 × 391 =
5. 5.299 × 298 =
6. 6.299 × 292 =
7. 7.292 × 293 =
8. 8.292 × 295 =
9. 9.402 × 406 =
10. 10.598 × 598 =
11. 11.81 × 81 =
12. 12.604 × 609 =
13. 13.78 × 79 =
14. 14.56 × 56 =
15. 15.92 × 92 =
16. 16.54 × 52 =
17. 17.36 × 37 =
18. 18.194 × 196 =
19. 19.209 × 209 =
20. 20.28 × 26 =
21. 21.408 × 404 =
22. 22.202 × 202 =
23. 23.201 × 203 =
24. 24.599 × 595 =
25. 25.76 × 79 =
26. 26.291 × 295 =
27. 27.82 × 82 =
28. 28.58 × 57 =
29. 29.503 × 504 =
30. 30.291 × 291 =
31. 31.16 × 19 =
32. 32.31 × 33 =
33. 33.604 × 608 =
34. 34.23 × 21 =
35. 35.494 × 499 =
36. 36.67 × 67 =
37. 37.37 × 37 =
38. 38.72 × 72 =
39. 39.42 × 42 =
40. 40.17 × 19 =

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