Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 91 · 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. 1.49 × 47 =
2. 2.292 × 299 =
3. 3.307 × 306 =
4. 4.493 × 497 =
5. 5.594 × 599 =
6. 6.496 × 495 =
7. 7.192 × 192 =
8. 8.68 × 67 =
9. 9.19 × 18 =
10. 10.597 × 595 =
11. 11.71 × 71 =
12. 12.603 × 607 =
13. 13.195 × 198 =
14. 14.309 × 303 =
15. 15.49 × 48 =
16. 16.41 × 44 =
17. 17.206 × 207 =
18. 18.391 × 392 =
19. 19.204 × 203 =
20. 20.22 × 22 =
21. 21.16 × 17 =
22. 22.72 × 73 =
23. 23.308 × 309 =
24. 24.401 × 408 =
25. 25.22 × 23 =
26. 26.302 × 301 =
27. 27.21 × 21 =
28. 28.501 × 507 =
29. 29.26 × 27 =
30. 30.203 × 207 =
31. 31.58 × 57 =
32. 32.71 × 73 =
33. 33.49 × 49 =
34. 34.53 × 53 =
35. 35.77 × 76 =
36. 36.18 × 17 =
37. 37.52 × 53 =
38. 38.496 × 499 =
39. 39.31 × 31 =
40. 40.23 × 24 =

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