Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 989 · 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. 1.595 × 599 =
2. 2.501 × 502 =
3. 3.495 × 493 =
4. 4.78 × 78 =
5. 5.81 × 82 =
6. 6.396 × 399 =
7. 7.304 × 302 =
8. 8.509 × 505 =
9. 9.47 × 49 =
10. 10.79 × 77 =
11. 11.209 × 204 =
12. 12.79 × 77 =
13. 13.302 × 302 =
14. 14.493 × 494 =
15. 15.209 × 202 =
16. 16.395 × 398 =
17. 17.72 × 73 =
18. 18.603 × 607 =
19. 19.69 × 69 =
20. 20.295 × 292 =
21. 21.399 × 396 =
22. 22.599 × 599 =
23. 23.57 × 57 =
24. 24.493 × 498 =
25. 25.48 × 46 =
26. 26.89 × 87 =
27. 27.596 × 599 =
28. 28.34 × 31 =
29. 29.66 × 69 =
30. 30.57 × 57 =
31. 31.195 × 194 =
32. 32.491 × 499 =
33. 33.84 × 81 =
34. 34.51 × 53 =
35. 35.44 × 41 =
36. 36.23 × 21 =
37. 37.197 × 196 =
38. 38.26 × 28 =
39. 39.93 × 91 =
40. 40.195 × 199 =

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