Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 859 · 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. 1.67 × 69 =
2. 2.64 × 63 =
3. 3.606 × 605 =
4. 4.84 × 81 =
5. 5.493 × 495 =
6. 6.509 × 502 =
7. 7.603 × 601 =
8. 8.205 × 204 =
9. 9.602 × 606 =
10. 10.31 × 33 =
11. 11.196 × 198 =
12. 12.395 × 391 =
13. 13.393 × 398 =
14. 14.606 × 601 =
15. 15.404 × 406 =
16. 16.495 × 498 =
17. 17.309 × 301 =
18. 18.23 × 21 =
19. 19.88 × 89 =
20. 20.24 × 23 =
21. 21.59 × 59 =
22. 22.502 × 509 =
23. 23.83 × 83 =
24. 24.69 × 66 =
25. 25.601 × 602 =
26. 26.598 × 595 =
27. 27.192 × 196 =
28. 28.89 × 88 =
29. 29.53 × 52 =
30. 30.19 × 17 =
31. 31.37 × 37 =
32. 32.197 × 198 =
33. 33.397 × 395 =
34. 34.297 × 291 =
35. 35.56 × 59 =
36. 36.72 × 71 =
37. 37.31 × 32 =
38. 38.502 × 506 =
39. 39.307 × 303 =
40. 40.32 × 33 =

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