Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 5 · 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. 1.309 × 302 =
2. 2.93 × 91 =
3. 3.202 × 206 =
4. 4.295 × 292 =
5. 5.16 × 17 =
6. 6.27 × 26 =
7. 7.309 × 302 =
8. 8.192 × 194 =
9. 9.201 × 201 =
10. 10.395 × 394 =
11. 11.62 × 64 =
12. 12.392 × 392 =
13. 13.406 × 409 =
14. 14.307 × 306 =
15. 15.491 × 491 =
16. 16.36 × 37 =
17. 17.89 × 87 =
18. 18.203 × 207 =
19. 19.93 × 93 =
20. 20.21 × 24 =
21. 21.295 × 293 =
22. 22.299 × 293 =
23. 23.51 × 54 =
24. 24.31 × 33 =
25. 25.34 × 32 =
26. 26.72 × 74 =
27. 27.404 × 404 =
28. 28.54 × 53 =
29. 29.192 × 194 =
30. 30.199 × 191 =
31. 31.295 × 299 =
32. 32.27 × 26 =
33. 33.47 × 48 =
34. 34.207 × 202 =
35. 35.509 × 507 =
36. 36.298 × 294 =
37. 37.69 × 68 =
38. 38.609 × 605 =
39. 39.43 × 44 =
40. 40.38 × 39 =

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