Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 397 · 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. 1.16 × 18 =
2. 2.203 × 201 =
3. 3.396 × 392 =
4. 4.296 × 294 =
5. 5.202 × 203 =
6. 6.79 × 77 =
7. 7.507 × 507 =
8. 8.28 × 26 =
9. 9.93 × 91 =
10. 10.205 × 207 =
11. 11.591 × 596 =
12. 12.292 × 296 =
13. 13.201 × 203 =
14. 14.23 × 23 =
15. 15.93 × 91 =
16. 16.79 × 79 =
17. 17.492 × 498 =
18. 18.34 × 33 =
19. 19.196 × 193 =
20. 20.39 × 36 =
21. 21.493 × 491 =
22. 22.89 × 86 =
23. 23.28 × 29 =
24. 24.509 × 505 =
25. 25.27 × 26 =
26. 26.497 × 497 =
27. 27.601 × 605 =
28. 28.23 × 23 =
29. 29.71 × 72 =
30. 30.507 × 506 =
31. 31.508 × 508 =
32. 32.205 × 207 =
33. 33.504 × 509 =
34. 34.48 × 46 =
35. 35.509 × 505 =
36. 36.402 × 403 =
37. 37.208 × 202 =
38. 38.54 × 51 =
39. 39.503 × 503 =
40. 40.391 × 396 =

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