Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 840 · 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. 1.391 × 396 =
2. 2.43 × 41 =
3. 3.27 × 28 =
4. 4.27 × 29 =
5. 5.505 × 504 =
6. 6.497 × 493 =
7. 7.199 × 199 =
8. 8.199 × 199 =
9. 9.409 × 404 =
10. 10.399 × 399 =
11. 11.502 × 503 =
12. 12.594 × 595 =
13. 13.302 × 309 =
14. 14.64 × 62 =
15. 15.66 × 69 =
16. 16.201 × 201 =
17. 17.28 × 29 =
18. 18.391 × 392 =
19. 19.18 × 19 =
20. 20.391 × 391 =
21. 21.304 × 303 =
22. 22.209 × 208 =
23. 23.396 × 399 =
24. 24.295 × 295 =
25. 25.59 × 59 =
26. 26.22 × 22 =
27. 27.89 × 86 =
28. 28.24 × 22 =
29. 29.58 × 57 =
30. 30.28 × 28 =
31. 31.48 × 47 =
32. 32.199 × 197 =
33. 33.297 × 299 =
34. 34.61 × 63 =
35. 35.29 × 26 =
36. 36.51 × 52 =
37. 37.39 × 39 =
38. 38.597 × 598 =
39. 39.29 × 28 =
40. 40.191 × 198 =

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