Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 559 · 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. 1.31 × 33 =
2. 2.62 × 62 =
3. 3.49 × 47 =
4. 4.53 × 53 =
5. 5.309 × 306 =
6. 6.88 × 89 =
7. 7.79 × 77 =
8. 8.401 × 409 =
9. 9.16 × 17 =
10. 10.49 × 47 =
11. 11.301 × 305 =
12. 12.16 × 17 =
13. 13.49 × 48 =
14. 14.309 × 304 =
15. 15.409 × 402 =
16. 16.34 × 32 =
17. 17.81 × 82 =
18. 18.495 × 499 =
19. 19.206 × 201 =
20. 20.58 × 59 =
21. 21.26 × 27 =
22. 22.495 × 497 =
23. 23.31 × 31 =
24. 24.209 × 206 =
25. 25.393 × 399 =
26. 26.28 × 26 =
27. 27.404 × 408 =
28. 28.58 × 58 =
29. 29.491 × 497 =
30. 30.596 × 599 =
31. 31.88 × 88 =
32. 32.87 × 89 =
33. 33.58 × 57 =
34. 34.19 × 19 =
35. 35.206 × 209 =
36. 36.17 × 19 =
37. 37.294 × 293 =
38. 38.398 × 393 =
39. 39.42 × 43 =
40. 40.598 × 593 =

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