Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 893 · 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. 1.39 × 38 =
2. 2.33 × 34 =
3. 3.502 × 509 =
4. 4.28 × 29 =
5. 5.82 × 81 =
6. 6.32 × 32 =
7. 7.405 × 403 =
8. 8.609 × 604 =
9. 9.21 × 21 =
10. 10.19 × 17 =
11. 11.37 × 39 =
12. 12.192 × 199 =
13. 13.608 × 606 =
14. 14.603 × 608 =
15. 15.68 × 68 =
16. 16.88 × 88 =
17. 17.301 × 302 =
18. 18.43 × 41 =
19. 19.52 × 54 =
20. 20.197 × 199 =
21. 21.206 × 204 =
22. 22.86 × 87 =
23. 23.74 × 73 =
24. 24.27 × 26 =
25. 25.199 × 197 =
26. 26.409 × 404 =
27. 27.82 × 81 =
28. 28.501 × 508 =
29. 29.205 × 203 =
30. 30.201 × 202 =
31. 31.27 × 28 =
32. 32.493 × 497 =
33. 33.36 × 36 =
34. 34.298 × 291 =
35. 35.62 × 63 =
36. 36.61 × 62 =
37. 37.195 × 193 =
38. 38.494 × 492 =
39. 39.299 × 298 =
40. 40.596 × 597 =

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