Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 935 · 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. 1.207 × 202 =
2. 2.22 × 23 =
3. 3.59 × 58 =
4. 4.77 × 76 =
5. 5.209 × 201 =
6. 6.498 × 498 =
7. 7.69 × 69 =
8. 8.396 × 397 =
9. 9.83 × 82 =
10. 10.82 × 82 =
11. 11.399 × 397 =
12. 12.38 × 37 =
13. 13.307 × 301 =
14. 14.61 × 64 =
15. 15.408 × 404 =
16. 16.197 × 196 =
17. 17.69 × 69 =
18. 18.609 × 605 =
19. 19.87 × 89 =
20. 20.497 × 493 =
21. 21.197 × 198 =
22. 22.82 × 83 =
23. 23.494 × 498 =
24. 24.86 × 87 =
25. 25.607 × 608 =
26. 26.76 × 76 =
27. 27.399 × 392 =
28. 28.295 × 294 =
29. 29.24 × 22 =
30. 30.36 × 39 =
31. 31.507 × 505 =
32. 32.196 × 194 =
33. 33.308 × 308 =
34. 34.39 × 39 =
35. 35.33 × 33 =
36. 36.208 × 208 =
37. 37.66 × 67 =
38. 38.74 × 74 =
39. 39.404 × 404 =
40. 40.86 × 87 =

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