Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 972 · 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. 1.41 × 42 =
2. 2.29 × 29 =
3. 3.299 × 291 =
4. 4.206 × 202 =
5. 5.61 × 61 =
6. 6.41 × 41 =
7. 7.193 × 192 =
8. 8.196 × 196 =
9. 9.43 × 44 =
10. 10.61 × 62 =
11. 11.86 × 88 =
12. 12.404 × 404 =
13. 13.47 × 49 =
14. 14.26 × 27 =
15. 15.42 × 42 =
16. 16.61 × 61 =
17. 17.59 × 57 =
18. 18.299 × 291 =
19. 19.291 × 291 =
20. 20.392 × 391 =
21. 21.607 × 602 =
22. 22.26 × 27 =
23. 23.306 × 301 =
24. 24.74 × 73 =
25. 25.307 × 306 =
26. 26.78 × 78 =
27. 27.398 × 394 =
28. 28.496 × 496 =
29. 29.195 × 193 =
30. 30.36 × 39 =
31. 31.87 × 87 =
32. 32.51 × 54 =
33. 33.77 × 77 =
34. 34.409 × 405 =
35. 35.402 × 403 =
36. 36.91 × 94 =
37. 37.22 × 23 =
38. 38.309 × 307 =
39. 39.504 × 505 =
40. 40.76 × 77 =

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