Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 135 · 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 × 37 =
2. 2.81 × 84 =
3. 3.52 × 51 =
4. 4.402 × 407 =
5. 5.81 × 82 =
6. 6.505 × 508 =
7. 7.407 × 407 =
8. 8.21 × 23 =
9. 9.294 × 299 =
10. 10.21 × 22 =
11. 11.32 × 31 =
12. 12.63 × 63 =
13. 13.53 × 51 =
14. 14.42 × 43 =
15. 15.591 × 592 =
16. 16.58 × 56 =
17. 17.67 × 67 =
18. 18.23 × 24 =
19. 19.38 × 38 =
20. 20.609 × 605 =
21. 21.407 × 409 =
22. 22.43 × 42 =
23. 23.19 × 17 =
24. 24.67 × 68 =
25. 25.24 × 23 =
26. 26.399 × 399 =
27. 27.49 × 48 =
28. 28.89 × 89 =
29. 29.26 × 27 =
30. 30.39 × 37 =
31. 31.29 × 29 =
32. 32.68 × 68 =
33. 33.504 × 506 =
34. 34.64 × 61 =
35. 35.21 × 24 =
36. 36.17 × 18 =
37. 37.195 × 191 =
38. 38.37 × 38 =
39. 39.51 × 52 =
40. 40.62 × 64 =

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