Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 290 · 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. 1.43 × 42 =
2. 2.205 × 202 =
3. 3.591 × 597 =
4. 4.505 × 501 =
5. 5.48 × 48 =
6. 6.27 × 26 =
7. 7.201 × 206 =
8. 8.83 × 81 =
9. 9.51 × 53 =
10. 10.593 × 597 =
11. 11.71 × 74 =
12. 12.204 × 207 =
13. 13.44 × 44 =
14. 14.82 × 82 =
15. 15.192 × 196 =
16. 16.17 × 18 =
17. 17.401 × 404 =
18. 18.492 × 498 =
19. 19.43 × 42 =
20. 20.309 × 302 =
21. 21.67 × 67 =
22. 22.309 × 303 =
23. 23.596 × 597 =
24. 24.401 × 409 =
25. 25.199 × 195 =
26. 26.38 × 39 =
27. 27.196 × 197 =
28. 28.309 × 306 =
29. 29.23 × 23 =
30. 30.203 × 204 =
31. 31.29 × 29 =
32. 32.599 × 591 =
33. 33.507 × 503 =
34. 34.84 × 82 =
35. 35.63 × 63 =
36. 36.497 × 492 =
37. 37.302 × 308 =
38. 38.508 × 506 =
39. 39.22 × 21 =
40. 40.491 × 491 =

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