Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 975 · 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. 1.509 × 503 =
2. 2.201 × 208 =
3. 3.393 × 397 =
4. 4.501 × 501 =
5. 5.399 × 399 =
6. 6.194 × 197 =
7. 7.609 × 605 =
8. 8.64 × 62 =
9. 9.198 × 198 =
10. 10.192 × 197 =
11. 11.195 × 197 =
12. 12.491 × 497 =
13. 13.297 × 295 =
14. 14.306 × 305 =
15. 15.26 × 26 =
16. 16.26 × 29 =
17. 17.21 × 21 =
18. 18.195 × 192 =
19. 19.59 × 58 =
20. 20.43 × 41 =
21. 21.31 × 31 =
22. 22.84 × 82 =
23. 23.42 × 44 =
24. 24.71 × 73 =
25. 25.27 × 29 =
26. 26.84 × 83 =
27. 27.302 × 305 =
28. 28.606 × 605 =
29. 29.399 × 398 =
30. 30.493 × 497 =
31. 31.38 × 38 =
32. 32.58 × 57 =
33. 33.51 × 54 =
34. 34.16 × 19 =
35. 35.24 × 22 =
36. 36.31 × 33 =
37. 37.507 × 502 =
38. 38.86 × 86 =
39. 39.92 × 93 =
40. 40.22 × 21 =

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