Working Base Multiplication Worksheet

Vedic maths trick 15: Working-base multiplication · Set 166 · 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. 1.64 × 63 =
2. 2.54 × 53 =
3. 3.53 × 52 =
4. 4.47 × 47 =
5. 5.305 × 306 =
6. 6.37 × 37 =
7. 7.56 × 56 =
8. 8.599 × 597 =
9. 9.208 × 206 =
10. 10.43 × 42 =
11. 11.17 × 18 =
12. 12.78 × 79 =
13. 13.33 × 33 =
14. 14.307 × 305 =
15. 15.39 × 37 =
16. 16.77 × 77 =
17. 17.21 × 23 =
18. 18.54 × 53 =
19. 19.49 × 47 =
20. 20.66 × 68 =
21. 21.42 × 41 =
22. 22.594 × 591 =
23. 23.73 × 74 =
24. 24.505 × 504 =
25. 25.302 × 308 =
26. 26.22 × 21 =
27. 27.304 × 307 =
28. 28.39 × 37 =
29. 29.399 × 392 =
30. 30.207 × 208 =
31. 31.43 × 41 =
32. 32.56 × 56 =
33. 33.392 × 399 =
34. 34.69 × 68 =
35. 35.34 × 34 =
36. 36.38 × 37 =
37. 37.509 × 507 =
38. 38.17 × 19 =
39. 39.83 × 84 =
40. 40.19 × 19 =

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