Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 27 · 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. 1.399 × 391 =
2. 2.61 × 61 =
3. 3.57 × 59 =
4. 4.94 × 93 =
5. 5.401 × 409 =
6. 6.193 × 199 =
7. 7.16 × 19 =
8. 8.296 × 291 =
9. 9.397 × 391 =
10. 10.27 × 26 =
11. 11.64 × 63 =
12. 12.37 × 39 =
13. 13.84 × 81 =
14. 14.16 × 18 =
15. 15.93 × 93 =
16. 16.88 × 87 =
17. 17.21 × 21 =
18. 18.194 × 198 =
19. 19.19 × 16 =
20. 20.76 × 79 =
21. 21.305 × 309 =
22. 22.491 × 499 =
23. 23.398 × 399 =
24. 24.32 × 31 =
25. 25.52 × 54 =
26. 26.71 × 72 =
27. 27.505 × 501 =
28. 28.303 × 303 =
29. 29.307 × 305 =
30. 30.48 × 49 =
31. 31.493 × 491 =
32. 32.59 × 56 =
33. 33.294 × 293 =
34. 34.609 × 606 =
35. 35.407 × 401 =
36. 36.33 × 32 =
37. 37.206 × 208 =
38. 38.57 × 58 =
39. 39.393 × 398 =
40. 40.192 × 196 =

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