Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 449 · 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. 1.38 × 39 =
2. 2.56 × 57 =
3. 3.307 × 306 =
4. 4.603 × 602 =
5. 5.53 × 54 =
6. 6.292 × 293 =
7. 7.192 × 199 =
8. 8.292 × 299 =
9. 9.18 × 19 =
10. 10.18 × 18 =
11. 11.604 × 609 =
12. 12.38 × 38 =
13. 13.37 × 39 =
14. 14.604 × 609 =
15. 15.202 × 203 =
16. 16.19 × 19 =
17. 17.22 × 24 =
18. 18.48 × 49 =
19. 19.29 × 29 =
20. 20.405 × 403 =
21. 21.68 × 67 =
22. 22.509 × 501 =
23. 23.81 × 83 =
24. 24.22 × 21 =
25. 25.19 × 19 =
26. 26.54 × 53 =
27. 27.294 × 293 =
28. 28.23 × 22 =
29. 29.32 × 32 =
30. 30.36 × 39 =
31. 31.608 × 603 =
32. 32.606 × 608 =
33. 33.303 × 301 =
34. 34.41 × 44 =
35. 35.593 × 595 =
36. 36.19 × 19 =
37. 37.87 × 88 =
38. 38.49 × 49 =
39. 39.297 × 294 =
40. 40.401 × 401 =

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